1749

the cost arising from inadequate quality discovered after the transfer of ownership from supplier to purchaser

 ■ Aitchison, J. (1987). Noam Chomsky: Consensus and controversy. New York: Falmer Press.

 ■ Anderson, J. R. (1980). Cognitive psychology and its implications. San Francisco: W. H. Freeman.

 ■ Anderson, J. R. (1983). The architecture of cognition. Cambridge, MA: Harvard University Press.

 ■ Anderson, J. R. (1995). Cognitive psychology and its implications (4th ed.). New York: W. H. Freeman.

 ■ Archilochus (1971). In M. L. West (Ed.), Iambi et elegi graeci (Vol. 1). Oxford: Oxford University Press.

 ■ Armstrong, D. M. (1990). The causal theory of the mind. In W. G. Lycan (Ed.), Mind and cognition: A reader (pp. 37-47). Cambridge, MA: Basil Blackwell. (Originally published in 1981 in The nature of mind and other essays, Ithaca, NY: University Press).

 ■ Atkins, P. W. (1992). Creation revisited. Oxford: W. H. Freeman & Company.

 ■ Austin, J. L. (1962). How to do things with words. Cambridge, MA: Harvard University Press.

 ■ Bacon, F. (1878). Of the proficience and advancement of learning divine and human. In The works of Francis Bacon (Vol. 1). Cambridge, MA: Hurd & Houghton.

 ■ Bacon, R. (1928). Opus majus (Vol. 2). R. B. Burke (Trans.). Philadelphia, PA: University of Pennsylvania Press.

 ■ Bar-Hillel, Y. (1960). The present status of automatic translation of languages. In F. L. Alt (Ed.), Advances in computers (Vol. 1). New York: Academic Press.

 ■ Barr, A., & E. A. Feigenbaum (Eds.) (1981). The handbook of artificial intelligence (Vol. 1). Reading, MA: Addison-Wesley.

 ■ Barr, A., & E. A. Feigenbaum (Eds.) (1982). The handbook of artificial intelligence (Vol. 2). Los Altos, CA: William Kaufman.

 ■ Barron, F. X. (1963). The needs for order and for disorder as motives in creative activity. In C. W. Taylor & F. X. Barron (Eds.), Scientific creativity: Its rec ognition and development (pp. 153-160). New York: Wiley.

 ■ Bartlett, F. C. (1932). Remembering: A study in experimental and social psychology. Cambridge: Cambridge University Press.

 ■ Bartley, S. H. (1969). Principles of perception. London: Harper & Row.

 ■ Barzun, J. (1959). The house of intellect. New York: Harper & Row.

 ■ Beach, F. A., D. O. Hebb, C. T. Morgan & H. W. Nissen (Eds.) (1960). The neu ropsychology of Lashley. New York: McGraw-Hill.

 ■ Berkeley, G. (1996). Principles of human knowledge: Three Dialogues. Oxford: Oxford University Press. (Originally published in 1710.)

 ■ Berlin, I. (1953). The hedgehog and the fox: An essay on Tolstoy's view of history. NY: Simon & Schuster.

 ■ Bierwisch, J. (1970). Semantics. In J. Lyons (Ed.), New horizons in linguistics. Baltimore: Penguin Books.

 ■ Black, H. C. (1951). Black's law dictionary. St. Paul, MN: West Publishing.

 ■ Bloom, A. (1981). The linguistic shaping of thought: A study in the impact of language on thinking in China and the West. Hillsdale, NJ: Erlbaum.

 ■ Bobrow, D. G., & D. A. Norman (1975). Some principles of memory schemata. In D. G. Bobrow & A. Collins (Eds.), Representation and understanding: Stud ies in Cognitive Science (pp. 131-149). New York: Academic Press.

 ■ Boden, M. A. (1977). Artificial intelligence and natural man. New York: Basic Books.

 ■ Boden, M. A. (1981). Minds and mechanisms. Ithaca, NY: Cornell University Press.

 ■ Boden, M. A. (1990a). The creative mind: Myths and mechanisms. London: Cardinal.

 ■ Boden, M. A. (1990b). The philosophy of artificial intelligence. Oxford: Oxford University Press.

 ■ Boden, M. A. (1994). Precis of The creative mind: Myths and mechanisms. Behavioral and brain sciences 17, 519-570.

 ■ Boden, M. (1996). Creativity. In M. Boden (Ed.), Artificial Intelligence (2nd ed.). San Diego: Academic Press.

 ■ Bolter, J. D. (1984). Turing's man: Western culture in the computer age. Chapel Hill, NC: University of North Carolina Press.

 ■ Bolton, N. (1972). The psychology of thinking. London: Methuen.

 ■ Bourne, L. E. (1973). Some forms of cognition: A critical analysis of several papers. In R. Solso (Ed.), Contemporary issues in cognitive psychology (pp. 313324). Loyola Symposium on Cognitive Psychology (Chicago 1972). Washington, DC: Winston.

 ■ Bransford, J. D., N. S. McCarrell, J. J. Franks & K. E. Nitsch (1977). Toward unexplaining memory. In R. Shaw & J. D. Bransford (Eds.), Perceiving, acting, and knowing (pp. 431-466). Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Breger, L. (1981). Freud's unfinished journey. London: Routledge & Kegan Paul.

 ■ Brehmer, B. (1986). In one word: Not from experience. In H. R. Arkes & K. Hammond (Eds.), Judgment and decision making: An interdisciplinary reader (pp. 705-719). Cambridge: Cambridge University Press.

 ■ Bresnan, J. (1978). A realistic transformational grammar. In M. Halle, J. Bresnan & G. A. Miller (Eds.), Linguistic theory and psychological reality (pp. 1-59). Cambridge, MA: MIT Press.

 ■ Brislin, R. W., W. J. Lonner & R. M. Thorndike (Eds.) (1973). Cross- cultural research methods. New York: Wiley.

 ■ Bronowski, J. (1977). A sense of the future: Essays in natural philosophy. P. E. Ariotti with R. Bronowski (Eds.). Cambridge, MA: MIT Press.

 ■ Bronowski, J. (1978). The origins of knowledge and imagination. New Haven, CT: Yale University Press.

 ■ Brown, R. O. (1973). A first language: The early stages. Cambridge, MA: Harvard University Press.

 ■ Brown, T. (1970). Lectures on the philosophy of the human mind. In R. Brown (Ed.), Between Hume and Mill: An anthology of British philosophy- 1749- 1843 (pp. 330-387). New York: Random House/Modern Library.

 ■ Bruner, J. S., J. Goodnow & G. Austin (1956). A study of thinking. New York: Wiley.

 ■ Calvin, W. H. (1990). The cerebral symphony: Seashore reflections on the structure of consciousness. New York: Bantam.

 ■ Campbell, J. (1982). Grammatical man: Information, entropy, language, and life. New York: Simon & Schuster.

 ■ Campbell, J. (1989). The improbable machine. New York: Simon & Schuster.

 ■ Carlyle, T. (1966). On heroes, hero- worship and the heroic in history. Lincoln: University of Nebraska Press. (Originally published in 1841.)

 ■ Carnap, R. (1959). The elimination of metaphysics through logical analysis of language [Ueberwindung der Metaphysik durch logische Analyse der Sprache]. In A. J. Ayer (Ed.), Logical positivism (pp. 60-81) A. Pap (Trans). New York: Free Press. (Originally published in 1932.)

 ■ Cassirer, E. (1946). Language and myth. New York: Harper and Brothers. Reprinted. New York: Dover Publications, 1953.

 ■ Cattell, R. B., & H. J. Butcher (1970). Creativity and personality. In P. E. Vernon (Ed.), Creativity. Harmondsworth, England: Penguin Books.

 ■ Caudill, M., & C. Butler (1990). Naturally intelligent systems. Cambridge, MA: MIT Press/Bradford Books.

 ■ Chandrasekaran, B. (1990). What kind of information processing is intelligence? A perspective on AI paradigms and a proposal. In D. Partridge & R. Wilks (Eds.), The foundations of artificial intelligence: A sourcebook (pp. 14-46). Cambridge: Cambridge University Press.

 ■ Charniak, E., & McDermott, D. (1985). Introduction to artificial intelligence. Reading, MA: Addison-Wesley.

 ■ Chase, W. G., & H. A. Simon (1988). The mind's eye in chess. In A. Collins & E. E. Smith (Eds.), Readings in cognitive science: A perspective from psychology and artificial intelligence (pp. 461-493). San Mateo, CA: Kaufmann.

 ■ Cheney, D. L., & R. M. Seyfarth (1990). How monkeys see the world: Inside the mind of another species. Chicago: University of Chicago Press.

 ■ Chi, M.T.H., R. Glaser & E. Rees (1982). Expertise in problem solving. In R. J. Sternberg (Ed.), Advances in the psychology of human intelligence (pp. 7-73). Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Chomsky, N. (1957). Syntactic structures. The Hague: Mouton. Janua Linguarum.

 ■ Chomsky, N. (1964). A transformational approach to syntax. In J. A. Fodor & J. J. Katz (Eds.), The structure of language: Readings in the philosophy of lan guage (pp. 211-245). Englewood Cliffs, NJ: Prentice-Hall.

 ■ Chomsky, N. (1965). Aspects of the theory of syntax. Cambridge, MA: MIT Press.

 ■ Chomsky, N. (1972). Language and mind (enlarged ed.). New York: Harcourt Brace Jovanovich.

 ■ Chomsky, N. (1979). Language and responsibility. New York: Pantheon.

 ■ Chomsky, N. (1986). Knowledge of language: Its nature, origin and use. New York: Praeger Special Studies.

 ■ Churchland, P. (1979). Scientific realism and the plasticity of mind. New York: Cambridge University Press.

 ■ Churchland, P. M. (1989). A neurocomputational perspective: The nature of mind and the structure of science. Cambridge, MA: MIT Press.

 ■ Churchland, P. S. (1986). Neurophilosophy. Cambridge, MA: MIT Press/Bradford Books.

 ■ Clark, A. (1996). Philosophical Foundations. In M. A. Boden (Ed.), Artificial in telligence (2nd ed.). San Diego: Academic Press.

 ■ Clark, H. H., & T. B. Carlson (1981). Context for comprehension. In J. Long & A. Baddeley (Eds.), Attention and performance (Vol. 9, pp. 313-330). Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Clarke, A. C. (1984). Profiles of the future: An inquiry into the limits of the possible. New York: Holt, Rinehart & Winston.

 ■ Claxton, G. (1980). Cognitive psychology: A suitable case for what sort of treatment? In G. Claxton (Ed.), Cognitive psychology: New directions (pp. 1-25). London: Routledge & Kegan Paul.

 ■ Code, M. (1985). Order and organism. Albany, NY: State University of New York Press.

 ■ Collingwood, R. G. (1972). The idea of history. New York: Oxford University Press.

 ■ Coopersmith, S. (1967). The antecedents of self- esteem. San Francisco: W. H. Freeman.

 ■ Copland, A. (1952). Music and imagination. London: Oxford University Press.

 ■ Coren, S. (1994). The intelligence of dogs. New York: Bantam Books.

 ■ Cottingham, J. (Ed.) (1996). Western philosophy: An anthology. Oxford: Blackwell Publishers.

 ■ Cox, C. (1926). The early mental traits of three hundred geniuses. Stanford, CA: Stanford University Press.

 ■ Craik, K.J.W. (1943). The nature of explanation. Cambridge: Cambridge University Press.

 ■ Cronbach, L. J. (1990). Essentials of psychological testing (5th ed.). New York: HarperCollins.

 ■ Cronbach, L. J., & R. E. Snow (1977). Aptitudes and instructional methods. New York: Irvington. Paperback edition, 1981.

 ■ Csikszentmihalyi, M. (1993). The evolving self. New York: Harper Perennial.

 ■ Culler, J. (1976). Ferdinand de Saussure. New York: Penguin Books.

 ■ Curtius, E. R. (1973). European literature and the Latin Middle Ages. W. R. Trask (Trans.). Princeton, NJ: Princeton University Press.

 ■ D'Alembert, J.L.R. (1963). Preliminary discourse to the encyclopedia of Diderot. R. N. Schwab (Trans.). Indianapolis: Bobbs-Merrill.

 ■ Damasio, A. (1994). Descartes' error: Emotion, reason, and the human brain. New York: Avon.

 ■ Dampier, W. C. (1966). A history of modern science. Cambridge: Cambridge University Press.

 ■ Darwin, C. (1911). The life and letters of Charles Darwin (Vol. 1). Francis Darwin (Ed.). New York: Appleton.

 ■ Davidson, D. (1970) Mental events. In L. Foster & J. W. Swanson (Eds.), Experience and theory (pp. 79-101). Amherst: University of Massachussetts Press.

 ■ Davies, P. (1995). About time: Einstein's unfinished revolution. New York: Simon & Schuster/Touchstone.

 ■ Davis, R., & J. J. King (1977). An overview of production systems. In E. Elcock & D. Michie (Eds.), Machine intelligence 8. Chichester, England: Ellis Horwood.

 ■ Davis, R., & D. B. Lenat (1982). Knowledge- based systems in artificial intelligence. New York: McGraw-Hill.

 ■ Dawkins, R. (1982). The extended phenotype: The gene as the unit of selection. Oxford: W. H. Freeman.

 ■ deKleer, J., & J. S. Brown (1983). Assumptions and ambiguities in mechanistic mental models (1983). In D. Gentner & A. L. Stevens (Eds.), Mental modes (pp. 155-190). Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Dennett, D. C. (1978a). Brainstorms: Philosophical essays on mind and psychology. Montgomery, VT: Bradford Books.

 ■ Dennett, D. C. (1978b). Toward a cognitive theory of consciousness. In D. C. Dennett, Brainstorms: Philosophical Essays on Mind and Psychology. Montgomery, VT: Bradford Books.

 ■ Dennett, D. C. (1995). Darwin's dangerous idea: Evolution and the meanings of life. New York: Simon & Schuster/Touchstone.

 ■ Descartes, R. (1897-1910). Traite de l'homme. In Oeuvres de Descartes (Vol. 11, pp. 119-215). Paris: Charles Adam & Paul Tannery. (Originally published in 1634.)

 ■ Descartes, R. (1950). Discourse on method. L. J. Lafleur (Trans.). New York: Liberal Arts Press. (Originally published in 1637.)

 ■ Descartes, R. (1951). Meditation on first philosophy. L. J. Lafleur (Trans.). New York: Liberal Arts Press. (Originally published in 1641.)

 ■ Descartes, R. (1955). The philosophical works of Descartes. E. S. Haldane and G.R.T. Ross (Trans.). New York: Dover. (Originally published in 1911 by Cambridge University Press.)

 ■ Descartes, R. (1967). Discourse on method (Pt. V). In E. S. Haldane and G.R.T. Ross (Eds.), The philosophical works of Descartes (Vol. 1, pp. 106-118). Cambridge: Cambridge University Press. (Originally published in 1637.)

 ■ Descartes, R. (1970a). Discourse on method. In E. S. Haldane & G.R.T. Ross (Eds.), The philosophical works of Descartes (Vol. 1, pp. 181-200). Cambridge: Cambridge University Press. (Originally published in 1637.)

 ■ Descartes, R. (1970b). Principles of philosophy. In E. S. Haldane & G.R.T. Ross (Eds.), The philosophical works of Descartes (Vol. 1, pp. 178-291). Cambridge: Cambridge University Press. (Originally published in 1644.)

 ■ Descartes, R. (1984). Meditations on first philosophy. In J. Cottingham, R. Stoothoff & D. Murduch (Trans.), The philosophical works of Descartes (Vol. 2). Cambridge: Cambridge University Press. (Originally published in 1641.)

 ■ Descartes, R. (1986). Meditations on first philosophy. J. Cottingham (Trans.). Cambridge: Cambridge University Press. (Originally published in 1641 as Med itationes de prima philosophia.)

 ■ deWulf, M. (1956). An introduction to scholastic philosophy. Mineola, NY: Dover Books.

 ■ Dixon, N. F. (1981). Preconscious processing. London: Wiley.

 ■ Doyle, A. C. (1986). The Boscombe Valley mystery. In Sherlock Holmes: The com plete novels and stories (Vol. 1). New York: Bantam.

 ■ Dreyfus, H., & S. Dreyfus (1986). Mind over machine. New York: Free Press.

 ■ Dreyfus, H. L. (1972). What computers can't do: The limits of artificial intelligence (revised ed.). New York: Harper & Row.

 ■ Dreyfus, H. L., & S. E. Dreyfus (1986). Mind over machine: The power of human intuition and expertise in the era of the computer. New York: Free Press.

 ■ Edelman, G. M. (1992). Bright air, brilliant fire: On the matter of the mind. New York: Basic Books.

 ■ Ehrenzweig, A. (1967). The hidden order of art. London: Weidenfeld & Nicolson.

 ■ Einstein, A., & L. Infeld (1938). The evolution of physics. New York: Simon & Schuster.

 ■ Eisenstein, S. (1947). Film sense. New York: Harcourt, Brace & World.

 ■ Everdell, W. R. (1997). The first moderns. Chicago: University of Chicago Press.

 ■ Eysenck, M. W. (1977). Human memory: Theory, research and individual difference. Oxford: Pergamon.

 ■ Eysenck, M. W. (1982). Attention and arousal: Cognition and performance. Berlin: Springer.

 ■ Eysenck, M. W. (1984). A handbook of cognitive psychology. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Fancher, R. E. (1979). Pioneers of psychology. New York: W. W. Norton.

 ■ Farrell, B. A. (1981). The standing of psychoanalysis. New York: Oxford University Press.

 ■ Feldman, D. H. (1980). Beyond universals in cognitive development. Norwood, NJ: Ablex.

 ■ Fetzer, J. H. (1996). Philosophy and cognitive science (2nd ed.). New York: Paragon House.

 ■ Finke, R. A. (1990). Creative imagery: Discoveries and inventions in visualization. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Flanagan, O. (1991). The science of the mind. Cambridge MA: MIT Press/Bradford Books.

 ■ Fodor, J. (1983). The modularity of mind. Cambridge, MA: MIT Press/Bradford Books.

 ■ Frege, G. (1972). Conceptual notation. T. W. Bynum (Trans.). Oxford: Clarendon Press. (Originally published in 1879.)

 ■ Frege, G. (1979). Logic. In H. Hermes, F. Kambartel & F. Kaulbach (Eds.), Gottlob Frege: Posthumous writings. Chicago: University of Chicago Press. (Originally published in 1879-1891.)

 ■ Freud, S. (1959). Creative writers and day-dreaming. In J. Strachey (Ed.), The standard edition of the complete psychological works of Sigmund Freud (Vol. 9, pp. 143-153). London: Hogarth Press.

 ■ Freud, S. (1966). Project for a scientific psychology. In J. Strachey (Ed.), The stan dard edition of the complete psychological works of Sigmund Freud (Vol. 1, pp. 295-398). London: Hogarth Press. (Originally published in 1950 as Aus den AnfaЁngen der Psychoanalyse, in London by Imago Publishing.)

 ■ Freud, S. (1976). Lecture 18-Fixation to traumas-the unconscious. In J. Strachey (Ed.), The standard edition of the complete psychological works of Sigmund Freud (Vol. 16, p. 285). London: Hogarth Press.

 ■ Galileo, G. (1990). Il saggiatore [The assayer]. In S. Drake (Ed.), Discoveries and opinions of Galileo. New York: Anchor Books. (Originally published in 1623.)

 ■ Gassendi, P. (1970). Letter to Descartes. In "Objections and replies." In E. S. Haldane & G.R.T. Ross (Eds.), The philosophical works of Descartes (Vol. 2, pp. 179-240). Cambridge: Cambridge University Press. (Originally published in 1641.)

 ■ Gazzaniga, M. S. (1988). Mind matters: How mind and brain interact to create our conscious lives. Boston: Houghton Mifflin in association with MIT Press/Bradford Books.

 ■ Genesereth, M. R., & N. J. Nilsson (1987). Logical foundations of artificial intelligence. Palo Alto, CA: Morgan Kaufmann.

 ■ Ghiselin, B. (1952). The creative process. New York: Mentor.

 ■ Ghiselin, B. (1985). The creative process. Berkeley, CA: University of California Press. (Originally published in 1952.)

 ■ Gilhooly, K. J. (1996). Thinking: Directed, undirected and creative (3rd ed.). London: Academic Press.

 ■ Glass, A. L., K. J. Holyoak & J. L. Santa (1979). Cognition. Reading, MA: AddisonWesley.

 ■ Goody, J. (1977). The domestication of the savage mind. Cambridge: Cambridge University Press.

 ■ Gruber, H. E. (1980). Darwin on man: A psychological study of scientific creativity (2nd ed.). Chicago: University of Chicago Press.

 ■ Gruber, H. E., & S. Davis (1988). Inching our way up Mount Olympus: The evolving systems approach to creative thinking. In R. J. Sternberg (Ed.), The nature of creativity: Contemporary psychological perspectives. Cambridge: Cambridge University Press.

 ■ Guthrie, E. R. (1972). The psychology of learning. New York: Harper. (Originally published in 1935.)

 ■ Habermas, J. (1972). Knowledge and human interests. Boston: Beacon Press.

 ■ Hadamard, J. (1945). The psychology of invention in the mathematical field. Princeton, NJ: Princeton University Press.

 ■ Hand, D. J. (1985). Artificial intelligence and psychiatry. Cambridge: Cambridge University Press.

 ■ Harris, M. (1981). The language myth. London: Duckworth.

 ■ Haugeland, J. (Ed.) (1981). Mind design: Philosophy, psychology, artificial intelligence. Cambridge, MA: MIT Press/Bradford Books.

 ■ Haugeland, J. (1981a). The nature and plausibility of cognitivism. In J. Haugeland (Ed.), Mind design: Philosophy, psychology, artificial intelligence (pp. 243-281). Cambridge, MA: MIT Press.

 ■ Haugeland, J. (1981b). Semantic engines: An introduction to mind design. In J. Haugeland (Ed.), Mind design: Philosophy, psychology, artificial intelligence (pp. 1-34). Cambridge, MA: MIT Press/Bradford Books.

 ■ Haugeland, J. (1985). Artificial intelligence: The very idea. Cambridge, MA: MIT Press.

 ■ Hawkes, T. (1977). Structuralism and semiotics. Berkeley: University of California Press.

 ■ Hebb, D. O. (1949). The organisation of behaviour. New York: Wiley.

 ■ Hebb, D. O. (1958). A textbook of psychology. Philadelphia: Saunders.

 ■ Hegel, G.W.F. (1910). The phenomenology of mind. J. B. Baille (Trans.). London: Sonnenschein. (Originally published as Phaenomenologie des Geistes, 1807.)

 ■ Heisenberg, W. (1958). Physics and philosophy. New York: Harper & Row.

 ■ Hempel, C. G. (1966). Philosophy of natural science. Englewood Cliffs, NJ: PrenticeHall.

 ■ Herman, A. (1997). The idea of decline in Western history. New York: Free Press.

 ■ Herrnstein, R. J., & E. G. Boring (Eds.) (1965). A source book in the history of psy chology. Cambridge, MA: Harvard University Press.

 ■ Herzmann, E. (1964). Mozart's creative process. In P. H. Lang (Ed.), The creative world of Mozart (pp. 17-30). London: Oldbourne Press.

 ■ Hilgard, E. R. (1957). Introduction to psychology. London: Methuen.

 ■ Hobbes, T. (1651). Leviathan. London: Crooke.

 ■ Hofstadter, D. R. (1979). Goedel, Escher, Bach: An eternal golden braid. New York: Basic Books.

 ■ Holliday, S. G., & M. J. Chandler (1986). Wisdom: Explorations in adult competence. Basel, Switzerland: Karger.

 ■ Horn, J. L. (1986). In R. J. Sternberg (Ed.), Advances in the psychology of human intelligence (Vol. 3). Hillsdale, NJ: Erlbaum.

 ■ Hull, C. (1943). Principles of behavior. New York: Appleton-Century-Crofts.

 ■ Hume, D. (1955). An inquiry concerning human understanding. New York: Liberal Arts Press. (Originally published in 1748.)

 ■ Hume, D. (1975). An enquiry concerning human understanding. In L. A. SelbyBigge (Ed.), Hume's enquiries (3rd. ed., revised P. H. Nidditch). Oxford: Clarendon. (Spelling and punctuation revised.) (Originally published in 1748.)

 ■ Hume, D. (1978). A treatise of human nature. L. A. Selby-Bigge (Ed.), Hume's enquiries (3rd. ed., revised P. H. Nidditch). Oxford: Clarendon. (With some modifications of spelling and punctuation.) (Originally published in 1690.)

 ■ Hunt, E. (1973). The memory we must have. In R. C. Schank & K. M. Colby (Eds.), Computer models of thought and language. (pp. 343-371) San Francisco: W. H. Freeman.

 ■ Husserl, E. (1960). Cartesian meditations. The Hague: Martinus Nijhoff.

 ■ Inhelder, B., & J. Piaget (1958). The growth of logical thinking from childhood to adolescence. New York: Basic Books. (Originally published in 1955 as De la logique de l'enfant a` la logique de l'adolescent. [Paris: Presses Universitaire de France])

 ■ James, W. (1890a). The principles of psychology (Vol. 1). New York: Dover Books.

 ■ James, W. (1890b). The principles of psychology. New York: Henry Holt.

 ■ Jevons, W. S. (1900). The principles of science (2nd ed.). London: Macmillan.

 ■ Johnson, G. (1986). Machinery of the mind: Inside the new science of artificial intelli gence. New York: Random House.

 ■ Johnson, M. L. (1988). Mind, language, machine. New York: St. Martin's Press.

 ■ Johnson-Laird, P. N. (1983). Mental models: Toward a cognitive science of language, inference, and consciousness. Cambridge, MA: Harvard University Press.

 ■ Johnson-Laird, P. N. (1988). The computer and the mind: An introduction to cognitive science. Cambridge, MA: Harvard University Press.

 ■ Jones, E. (1961). The life and work of Sigmund Freud. L. Trilling & S. Marcus (Eds.). London: Hogarth.

 ■ Jones, R. V. (1985). Complementarity as a way of life. In A. P. French & P. J. Kennedy (Eds.), Niels Bohr: A centenary volume. Cambridge, MA: Harvard University Press.

 ■ Kant, I. (1933). Critique of Pure Reason (2nd ed.). N. K. Smith (Trans.). London: Macmillan. (Originally published in 1781 as Kritik der reinen Vernunft.)

 ■ Kant, I. (1891). Solution of the general problems of the Prolegomena. In E. Belfort (Trans.), Kant's Prolegomena. London: Bell. (With minor modifications.) (Originally published in 1783.)

 ■ Katona, G. (1940). Organizing and memorizing: Studies in the psychology of learning and teaching. New York: Columbia University Press.

 ■ Kaufman, A. S. (1979). Intelligent testing with the WISC-R. New York: Wiley.

 ■ Koestler, A. (1964). The act of creation. New York: Arkana (Penguin).

 ■ Kohlberg, L. (1971). From is to ought. In T. Mischel (Ed.), Cognitive development and epistemology. (pp. 151-235) New York: Academic Press.

 ■ KoЁhler, W. (1925). The mentality of apes. New York: Liveright.

 ■ KoЁhler, W. (1927). The mentality of apes (2nd ed.). Ella Winter (Trans.). London: Routledge & Kegan Paul.

 ■ KoЁhler, W. (1930). Gestalt psychology. London: G. Bell.

 ■ KoЁhler, W. (1947). Gestalt psychology. New York: Liveright.

 ■ KoЁhler, W. (1969). The task of Gestalt psychology. Princeton, NJ: Princeton University Press.

 ■ Kuhn, T. (1970). The structure of scientific revolutions (2nd ed.). Chicago: University of Chicago Press.

 ■ Langer, E. J. (1989). Mindfulness. Reading, MA: Addison-Wesley.

 ■ Langer, S. (1962). Philosophical sketches. Baltimore: Johns Hopkins University Press.

 ■ Langley, P., H. A. Simon, G. L. Bradshaw & J. M. Zytkow (1987). Scientific dis covery: Computational explorations of the creative process. Cambridge, MA: MIT Press.

 ■ Lashley, K. S. (1951). The problem of serial order in behavior. In L. A. Jeffress (Ed.), Cerebral mechanisms in behavior, the Hixon Symposium (pp. 112-146) New York: Wiley.

 ■ LeDoux, J. E., & W. Hirst (1986). Mind and brain: Dialogues in cognitive neuroscience. Cambridge: Cambridge University Press.

 ■ Lehnert, W. (1978). The process of question answering. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Leiber, J. (1991). Invitation to cognitive science. Oxford: Blackwell.

 ■ Lenat, D. B., & G. Harris (1978). Designing a rule system that searches for scientific discoveries. In D. A. Waterman & F. Hayes-Roth (Eds.), Pattern directed inference systems (pp. 25-52) New York: Academic Press.

 ■ Levenson, T. (1995). Measure for measure: A musical history of science. New York: Touchstone. (Originally published in 1994.)

 ■ Leґvi-Strauss, C. (1963). Structural anthropology. C. Jacobson & B. Grundfest Schoepf (Trans.). New York: Basic Books. (Originally published in 1958.)

 ■ Levine, M. W., & J. M. Schefner (1981). Fundamentals of sensation and perception. London: Addison-Wesley.

 ■ Lewis, C. I. (1946). An analysis of knowledge and valuation. LaSalle, IL: Open Court.

 ■ Lighthill, J. (1972). A report on artificial intelligence. Unpublished manuscript, Science Research Council.

 ■ Lipman, M., A. M. Sharp & F. S. Oscanyan (1980). Philosophy in the classroom. Philadelphia: Temple University Press.

 ■ Lippmann, W. (1965). Public opinion. New York: Free Press. (Originally published in 1922.)

 ■ Locke, J. (1956). An essay concerning human understanding. Chicago: Henry Regnery Co. (Originally published in 1690.)

 ■ Locke, J. (1975). An essay concerning human understanding. P. H. Nidditch (Ed.). Oxford: Clarendon. (Originally published in 1690.) (With spelling and punctuation modernized and some minor modifications of phrasing.)

 ■ Lopate, P. (1994). The art of the personal essay. New York: Doubleday/Anchor Books.

 ■ Lorimer, F. (1929). The growth of reason. London: Kegan Paul. Machlup, F., & U. Mansfield (Eds.) (1983). The study of information. New York: Wiley.

 ■ Manguel, A. (1996). A history of reading. New York: Viking.

 ■ Margolis, H. (1987). Patterns, thinking, and cognition. Chicago: University of Chicago Press.

 ■ Markey, J. F. (1928). The symbolic process. London: Kegan Paul.

 ■ Martin, R. M. (1969). On Ziff's "Natural and formal languages." In S. Hook (Ed.), Language and philosophy: A symposium (pp. 249-263). New York: New York University Press.

 ■ Mazlish, B. (1993). The fourth discontinuity: the co- evolution of humans and machines. New Haven, CT: Yale University Press.

 ■ McCarthy, J., & P. J. Hayes (1969). Some philosophical problems from the standpoint of artificial intelligence. In B. Meltzer & D. Michie (Eds.), Machine intelligence 4. Edinburgh: Edinburgh University Press.

 ■ McClelland, J. L., D. E. Rumelhart & G. E. Hinton (1986). The appeal of parallel distributed processing. In D. E. Rumelhart, J. L. McClelland & the PDP Research Group (Eds.), Parallel distributed processing: Explorations in the mi crostructure of cognition (Vol. 1, pp. 3-40). Cambridge, MA: MIT Press/ Bradford Books.

 ■ McCorduck, P. (1979). Machines who think. San Francisco: W. H. Freeman.

 ■ McLaughlin, T. (1970). Music and communication. London: Faber & Faber.

 ■ Mednick, S. A. (1962). The associative basis of the creative process. Psychological Review 69, 431-436.

 ■ Meehl, P. E., & C. J. Golden (1982). Taxometric methods. In Kendall, P. C., & Butcher, J. N. (Eds.), Handbook of research methods in clinical psychology (pp. 127-182). New York: Wiley.

 ■ Mehler, J., E.C.T. Walker & M. Garrett (Eds.) (1982). Perspectives on mental rep resentation: Experimental and theoretical studies of cognitive processes and ca pacities. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Mill, J. S. (1900). A system of logic, ratiocinative and inductive: Being a connected view of the principles of evidence and the methods of scientific investigation. London: Longmans, Green.

 ■ Miller, G. A. (1979, June). A very personal history. Talk to the Cognitive Science Workshop, Cambridge, MA.

 ■ Miller, J. (1983). States of mind. New York: Pantheon Books.

 ■ Minsky, M. (1975). A framework for representing knowledge. In P. H. Winston (Ed.), The psychology of computer vision (pp. 211-277). New York: McGrawHill.

 ■ Minsky, M., & S. Papert (1973). Artificial intelligence. Condon Lectures, Oregon State System of Higher Education, Eugene, Oregon.

 ■ Minsky, M. L. (1986). The society of mind. New York: Simon & Schuster.

 ■ Mischel, T. (1976). Psychological explanations and their vicissitudes. In J. K. Cole & W. J. Arnold (Eds.), Nebraska Symposium on motivation (Vol. 23). Lincoln, NB: University of Nebraska Press.

 ■ Morford, M.P.O., & R. J. Lenardon (1995). Classical mythology (5th ed.). New York: Longman.

 ■ Murdoch, I. (1954). Under the net. New York: Penguin.

 ■ Nagel, E. (1959). Methodological issues in psychoanalytic theory. In S. Hook (Ed.), Psychoanalysis, scientific method, and philosophy: A symposium. New York: New York University Press.

 ■ Nagel, T. (1979). Mortal questions. London: Cambridge University Press.

 ■ Nagel, T. (1986). The view from nowhere. Oxford: Oxford University Press.

 ■ Neisser, U. (1967). Cognitive psychology. New York: Appleton-Century-Crofts.

 ■ Neisser, U. (1972). Changing conceptions of imagery. In P. W. Sheehan (Ed.), The function and nature of imagery (pp. 233-251). London: Academic Press.

 ■ Neisser, U. (1976). Cognition and reality. San Francisco: W. H. Freeman.

 ■ Neisser, U. (1978). Memory: What are the important questions? In M. M. Gruneberg, P. E. Morris & R. N. Sykes (Eds.), Practical aspects of memory (pp. 3-24). London: Academic Press.

 ■ Neisser, U. (1979). The concept of intelligence. In R. J. Sternberg & D. K. Detterman (Eds.), Human intelligence: Perspectives on its theory and measurement (pp. 179-190). Norwood, NJ: Ablex.

 ■ Nersessian, N. (1992). How do scientists think? Capturing the dynamics of conceptual change in science. In R. N. Giere (Ed.), Cognitive models of science (pp. 3-44). Minneapolis: University of Minnesota Press.

 ■ Newell, A. (1973a). Artificial intelligence and the concept of mind. In R. C. Schank & K. M. Colby (Eds.), Computer models of thought and language (pp. 1-60). San Francisco: W. H. Freeman.

 ■ Newell, A. (1973b). You can't play 20 questions with nature and win. In W. G. Chase (Ed.), Visual information processing (pp. 283-310). New York: Academic Press.

 ■ Newell, A., & H. A. Simon (1963). GPS: A program that simulates human thought. In E. A. Feigenbaum & J. Feldman (Eds.), Computers and thought (pp. 279-293). New York & McGraw-Hill.

 ■ Newell, A., & H. A. Simon (1972). Human problem solving. Englewood Cliffs, NJ: Prentice-Hall.

 ■ Nietzsche, F. (1966). Beyond good and evil. W. Kaufmann (Trans.). New York: Vintage. (Originally published in 1885.)

 ■ Nilsson, N. J. (1971). Problem- solving methods in artificial intelligence. New York: McGraw-Hill.

 ■ Nussbaum, M. C. (1978). Aristotle's Princeton University Press. De Motu Anamalium. Princeton, NJ:

 ■ Oersted, H. C. (1920). Thermo-electricity. In Kirstine Meyer (Ed.), H. C. Oersted, Natuurvidenskabelige Skrifter (Vol. 2). Copenhagen: n.p. (Originally published in 1830 in The Edinburgh encyclopaedia.)

 ■ Ong, W. J. (1982). Orality and literacy: The technologizing of the word. London: Methuen.

 ■ Onians, R. B. (1954). The origins of European thought. Cambridge, MA: Cambridge University Press.

 ■ Osgood, C. E. (1960). Method and theory in experimental psychology. New York: Oxford University Press. (Originally published in 1953.)

 ■ Osgood, C. E. (1966). Language universals and psycholinguistics. In J. H. Greenberg (Ed.), Universals of language (2nd ed., pp. 299-322). Cambridge, MA: MIT Press.

 ■ Palmer, R. E. (1969). Hermeneutics. Evanston, IL: Northwestern University Press.

 ■ Peirce, C. S. (1934). Some consequences of four incapacities-Man, a sign. In C. Hartsborne & P. Weiss (Eds.), Collected papers of Charles Saunders Peirce (Vol. 5, pp. 185-189). Cambridge, MA: Harvard University Press.

 ■ Penfield, W. (1959). In W. Penfield & L. Roberts, Speech and brain mechanisms. Princeton, NJ: Princeton University Press.

 ■ Penrose, R. (1994). Shadows of the mind: A search for the missing science of conscious ness. Oxford: Oxford University Press.

 ■ Perkins, D. N. (1981). The mind's best work. Cambridge, MA: Harvard University Press.

 ■ Peterfreund, E. (1986). The heuristic approach to psychoanalytic therapy. In

 ■ J. Reppen (Ed.), Analysts at work, (pp. 127-144). Hillsdale, NJ: Analytic Press.

 ■ Piaget, J. (1952). The origin of intelligence in children. New York: International Universities Press. (Originally published in 1936.)

 ■ Piaget, J. (1954). Le langage et les opeґrations intellectuelles. Proble` mes de psycho linguistique. Symposium de l'Association de Psychologie Scientifique de Langue Francёaise. Paris: Presses Universitaires de France.

 ■ Piaget, J. (1977). Problems of equilibration. In H. E. Gruber & J. J. Voneche (Eds.), The essential Piaget (pp. 838-841). London: Routlege & Kegan Paul. (Originally published in 1975 as L'eґquilibration des structures cognitives [Paris: Presses Universitaires de France].)

 ■ Piaget, J., & B. Inhelder. (1973). Memory and intelligence. New York: Basic Books.

 ■ Pinker, S. (1994). The language instinct. New York: Morrow.

 ■ Pinker, S. (1996). Facts about human language relevant to its evolution. In J.-P. Changeux & J. Chavaillon (Eds.), Origins of the human brain. A symposium of the Fyssen foundation (pp. 262-283). Oxford: Clarendon Press. Planck, M. (1949). Scientific autobiography and other papers. F. Gaynor (Trans.). New York: Philosophical Library.

 ■ Planck, M. (1990). Wissenschaftliche Selbstbiographie. W. Berg (Ed.). Halle, Germany: Deutsche Akademie der Naturforscher Leopoldina.

 ■ Plato (1892). Meno. In The Dialogues of Plato (B. Jowett, Trans.; Vol. 2). New York: Clarendon. (Originally published circa 380 B.C.)

 ■ Poincareґ, H. (1913). Mathematical creation. In The foundations of science. G. B. Halsted (Trans.). New York: Science Press.

 ■ Poincareґ, H. (1921). The foundations of science: Science and hypothesis, the value of science, science and method. G. B. Halstead (Trans.). New York: Science Press.

 ■ Poincareґ, H. (1929). The foundations of science: Science and hypothesis, the value of science, science and method. New York: Science Press.

 ■ Poincareґ, H. (1952). Science and method. F. Maitland (Trans.) New York: Dover.

 ■ Polya, G. (1945). How to solve it. Princeton, NJ: Princeton University Press.

 ■ Polanyi, M. (1958). Personal knowledge. London: Routledge & Kegan Paul.

 ■ Popper, K. (1968). Conjectures and refutations: The growth of scientific knowledge. New York: Harper & Row/Basic Books.

 ■ Popper, K., & J. Eccles (1977). The self and its brain. New York: Springer-Verlag.

 ■ Popper, K. R. (1959). The logic of scientific discovery. London: Hutchinson.

 ■ Putnam, H. (1975). Mind, language and reality: Philosophical papers (Vol. 2). Cambridge: Cambridge University Press.

 ■ Putnam, H. (1987). The faces of realism. LaSalle, IL: Open Court.

 ■ Pylyshyn, Z. W. (1981). The imagery debate: Analog media versus tacit knowledge. In N. Block (Ed.), Imagery (pp. 151-206). Cambridge, MA: MIT Press.

 ■ Pylyshyn, Z. W. (1984). Computation and cognition: Towards a foundation for cog nitive science. Cambridge, MA: MIT Press/Bradford Books.

 ■ Quillian, M. R. (1968). Semantic memory. In M. Minsky (Ed.), Semantic information processing (pp. 216-260). Cambridge, MA: MIT Press.

 ■ Quine, W.V.O. (1960). Word and object. Cambridge, MA: Harvard University Press.

 ■ Rabbitt, P.M.A., & S. Dornic (Eds.). Attention and performance (Vol. 5). London: Academic Press.

 ■ Rawlins, G.J.E. (1997). Slaves of the Machine: The quickening of computer technology. Cambridge, MA: MIT Press/Bradford Books.

 ■ Reid, T. (1970). An inquiry into the human mind on the principles of common sense. In R. Brown (Ed.), Between Hume and Mill: An anthology of British philosophy- 1749- 1843 (pp. 151-178). New York: Random House/Modern Library.

 ■ Reitman, W. (1970). What does it take to remember? In D. A. Norman (Ed.), Models of human memory (pp. 470-510). London: Academic Press.

 ■ Ricoeur, P. (1974). Structure and hermeneutics. In D. I. Ihde (Ed.), The conflict of interpretations: Essays in hermeneutics (pp. 27-61). Evanston, IL: Northwestern University Press.

 ■ Robinson, D. N. (1986). An intellectual history of psychology. Madison: University of Wisconsin Press.

 ■ Rorty, R. (1979). Philosophy and the mirror of nature. Princeton, NJ: Princeton University Press.

 ■ Rosch, E. (1977). Human categorization. In N. Warren (Ed.), Studies in cross cultural psychology (Vol. 1, pp. 1-49) London: Academic Press.

 ■ Rosch, E. (1978). Principles of categorization. In E. Rosch & B. B. Lloyd (Eds.), Cognition and categorization (pp. 27-48). Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Rosch, E., & B. B. Lloyd (1978). Principles of categorization. In E. Rosch & B. B. Lloyd (Eds.), Cognition and categorization. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Rose, S. (1970). The chemistry of life. Baltimore: Penguin Books.

 ■ Rose, S. (1976). The conscious brain (updated ed.). New York: Random House.

 ■ Rose, S. (1993). The making of memory: From molecules to mind. New York: Anchor Books. (Originally published in 1992)

 ■ Roszak, T. (1994). The cult of information: A neo- Luddite treatise on high- tech, artificial intelligence, and the true art of thinking (2nd ed.). Berkeley: University of California Press.

 ■ Royce, J. R., & W. W. Rozeboom (Eds.) (1972). The psychology of knowing. New York: Gordon & Breach.

 ■ Rumelhart, D. E. (1977). Introduction to human information processing. New York: Wiley.

 ■ Rumelhart, D. E. (1980). Schemata: The building blocks of cognition. In R. J. Spiro, B. Bruce & W. F. Brewer (Eds.), Theoretical issues in reading comprehension. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Rumelhart, D. E., & J. L. McClelland (1986). On learning the past tenses of English verbs. In J. L. McClelland & D. E. Rumelhart (Eds.), Parallel distributed processing: Explorations in the microstructure of cognition (Vol. 2). Cambridge, MA: MIT Press.

 ■ Rumelhart, D. E., P. Smolensky, J. L. McClelland & G. E. Hinton (1986). Schemata and sequential thought processes in PDP models. In J. L. McClelland, D. E. Rumelhart & the PDP Research Group (Eds.), Parallel Distributed Processing (Vol. 2, pp. 7-57). Cambridge, MA: MIT Press.

 ■ Russell, B. (1927). An outline of philosophy. London: G. Allen & Unwin.

 ■ Russell, B. (1961). History of Western philosophy. London: George Allen & Unwin.

 ■ Russell, B. (1965). How I write. In Portraits from memory and other essays. London: Allen & Unwin.

 ■ Russell, B. (1992). In N. Griffin (Ed.), The selected letters of Bertrand Russell (Vol. 1), The private years, 1884- 1914. Boston: Houghton Mifflin. Ryecroft, C. (1966). Psychoanalysis observed. London: Constable.

 ■ Sagan, C. (1978). The dragons of Eden: Speculations on the evolution of human intel ligence. New York: Ballantine Books.

 ■ Salthouse, T. A. (1992). Expertise as the circumvention of human processing limitations. In K. A. Ericsson & J. Smith (Eds.), Toward a general theory of expertise: Prospects and limits (pp. 172-194). Cambridge: Cambridge University Press.

 ■ Sanford, A. J. (1987). The mind of man: Models of human understanding. New Haven, CT: Yale University Press.

 ■ Sapir, E. (1921). Language. New York: Harcourt, Brace, and World.

 ■ Sapir, E. (1964). Culture, language, and personality. Berkeley: University of California Press. (Originally published in 1941.)

 ■ Sapir, E. (1985). The status of linguistics as a science. In D. G. Mandelbaum (Ed.), Selected writings of Edward Sapir in language, culture and personality (pp. 160166). Berkeley: University of California Press. (Originally published in 1929).

 ■ Scardmalia, M., & C. Bereiter (1992). Literate expertise. In K. A. Ericsson & J. Smith (Eds.), Toward a general theory of expertise: Prospects and limits (pp. 172-194). Cambridge: Cambridge University Press.

 ■ Schafer, R. (1954). Psychoanalytic interpretation in Rorschach testing. New York: Grune & Stratten.

 ■ Schank, R. C. (1973). Identification of conceptualizations underlying natural language. In R. C. Schank & K. M. Colby (Eds.), Computer models of thought and language (pp. 187-248). San Francisco: W. H. Freeman.

 ■ Schank, R. C. (1976). The role of memory in language processing. In C. N. Cofer (Ed.), The structure of human memory. (pp. 162-189) San Francisco: W. H. Freeman.

 ■ Schank, R. C. (1986). Explanation patterns: Understanding mechanically and creatively. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Schank, R. C., & R. P. Abelson (1977). Scripts, plans, goals, and understanding. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ SchroЁdinger, E. (1951). Science and humanism. Cambridge: Cambridge University Press.

 ■ Searle, J. R. (1981a). Minds, brains, and programs. In J. Haugeland (Ed.), Mind design: Philosophy, psychology, artificial intelligence (pp. 282-306). Cambridge, MA: MIT Press.

 ■ Searle, J. R. (1981b). Minds, brains and programs. In D. Hofstadter & D. Dennett (Eds.), The mind's I (pp. 353-373). New York: Basic Books.

 ■ Searle, J. R. (1983). Intentionality. New York: Cambridge University Press.

 ■ Serres, M. (1982). The origin of language: Biology, information theory, and thermodynamics. M. Anderson (Trans.). In J. V. Harari & D. F. Bell (Eds.), Hermes: Literature, science, philosophy (pp. 71-83). Baltimore: Johns Hopkins University Press.

 ■ Simon, H. A. (1966). Scientific discovery and the psychology of problem solving. In R. G. Colodny (Ed.), Mind and cosmos: Essays in contemporary science and philosophy (pp. 22-40). Pittsburgh: University of Pittsburgh Press.

 ■ Simon, H. A. (1979). Models of thought. New Haven, CT: Yale University Press.

 ■ Simon, H. A. (1989). The scientist as a problem solver. In D. Klahr & K. Kotovsky (Eds.), Complex information processing: The impact of Herbert Simon. Hillsdale, N.J.: Lawrence Erlbaum Associates.

 ■ Simon, H. A., & C. Kaplan (1989). Foundations of cognitive science. In M. Posner (Ed.), Foundations of cognitive science (pp. 1-47). Cambridge, MA: MIT Press.

 ■ Simonton, D. K. (1988). Creativity, leadership and chance. In R. J. Sternberg (Ed.), The nature of creativity. Cambridge: Cambridge University Press.

 ■ Skinner, B. F. (1974). About behaviorism. New York: Knopf.

 ■ Smith, E. E. (1988). Concepts and thought. In J. Sternberg & E. E. Smith (Eds.), The psychology of human thought (pp. 19-49). Cambridge: Cambridge University Press.

 ■ Smith, E. E. (1990). Thinking: Introduction. In D. N. Osherson & E. E. Smith (Eds.), Thinking. An invitation to cognitive science. (Vol. 3, pp. 1-2). Cambridge, MA: MIT Press.

 ■ Socrates. (1958). Meno. In E. H. Warmington & P. O. Rouse (Eds.), Great dialogues of Plato W.H.D. Rouse (Trans.). New York: New American Library. (Original publication date unknown.)

 ■ Solso, R. L. (1974). Theories of retrieval. In R. L. Solso (Ed.), Theories in cognitive psychology. Potomac, MD: Lawrence Erlbaum Associates.

 ■ Spencer, H. (1896). The principles of psychology. New York: Appleton-CenturyCrofts.

 ■ Steiner, G. (1975). After Babel: Aspects of language and translation. New York: Oxford University Press.

 ■ Sternberg, R. J. (1977). Intelligence, information processing, and analogical reasoning. Hillsdale, NJ: Lawrence Erlbaum Associates.

 ■ Sternberg, R. J. (1994). Intelligence. In R. J. Sternberg, Thinking and problem solving. San Diego: Academic Press.

 ■ Sternberg, R. J., & J. E. Davidson (1985). Cognitive development in gifted and talented. In F. D. Horowitz & M. O'Brien (Eds.), The gifted and talented (pp. 103-135). Washington, DC: American Psychological Association.

 ■ Storr, A. (1993). The dynamics of creation. New York: Ballantine Books. (Originally published in 1972.)

 ■ Stumpf, S. E. (1994). Philosophy: History and problems (5th ed.). New York: McGraw-Hill.

 ■ Sulloway, F. J. (1996). Born to rebel: Birth order, family dynamics, and creative lives. New York: Random House/Vintage Books.

 ■ Thorndike, E. L. (1906). Principles of teaching. New York: A. G. Seiler.

 ■ Thorndike, E. L. (1970). Animal intelligence: Experimental studies. Darien, CT: Hafner Publishing Co. (Originally published in 1911.)

 ■ Titchener, E. B. (1910). A textbook of psychology. New York: Macmillan.

 ■ Titchener, E. B. (1914). A primer of psychology. New York: Macmillan.

 ■ Toulmin, S. (1957). The philosophy of science. London: Hutchinson.

 ■ Tulving, E. (1972). Episodic and semantic memory. In E. Tulving & W. Donaldson (Eds.), Organisation of memory. London: Academic Press.

 ■ Turing, A. (1946). In B. E. Carpenter & R. W. Doran (Eds.), ACE reports of 1946 and other papers. Cambridge, MA: MIT Press.

 ■ Turkle, S. (1984). Computers and the second self: Computers and the human spirit. New York: Simon & Schuster.

 ■ Tyler, S. A. (1978). The said and the unsaid: Mind, meaning, and culture. New York: Academic Press.

 ■ van Heijenoort (Ed.) (1967). From Frege to Goedel. Cambridge: Harvard University Press.

 ■ Varela, F. J. (1984). The creative circle: Sketches on the natural history of circularity. In P. Watzlawick (Ed.), The invented reality (pp. 309-324). New York: W. W. Norton.

 ■ Voltaire (1961). On the Penseґs of M. Pascal. In Philosophical letters (pp. 119-146). E. Dilworth (Trans.). Indianapolis: Bobbs-Merrill.

 ■ Wagman, M. (1991a). Artificial intelligence and human cognition: A theoretical inter comparison of two realms of intellect. Westport, CT: Praeger.

 ■ Wagman, M. (1991b). Cognitive science and concepts of mind: Toward a general theory of human and artificial intelligence. Westport, CT: Praeger.

 ■ Wagman, M. (1993). Cognitive psychology and artificial intelligence: Theory and re search in cognitive science. Westport, CT: Praeger.

 ■ Wagman, M. (1995). The sciences of cognition: Theory and research in psychology and artificial intelligence. Westport, CT: Praeger.

 ■ Wagman, M. (1996). Human intellect and cognitive science: Toward a general unified theory of intelligence. Westport, CT: Praeger.

 ■ Wagman, M. (1997a). Cognitive science and the symbolic operations of human and artificial intelligence: Theory and research into the intellective processes. Westport, CT: Praeger.

 ■ Wagman, M. (1997b). The general unified theory of intelligence: Central conceptions and specific application to domains of cognitive science. Westport, CT: Praeger.

 ■ Wagman, M. (1998a). Cognitive science and the mind- body problem: From philosophy to psychology to artificial intelligence to imaging of the brain. Westport, CT: Praeger.

 ■ Wagman, M. (1998b). Language and thought in humans and computers: Theory and research in psychology, artificial intelligence, and neural science. Westport, CT: Praeger.

 ■ Wagman, M. (1998c). The ultimate objectives of artificial intelligence: Theoretical and research foundations, philosophical and psychological implications. Westport, CT: Praeger.

 ■ Wagman, M. (1999). The human mind according to artificial intelligence: Theory, re search, and implications. Westport, CT: Praeger.

 ■ Wagman, M. (2000). Scientific discovery processes in humans and computers: Theory and research in psychology and artificial intelligence. Westport, CT: Praeger.

 ■ Wall, R. (1972). Introduction to mathematical linguistics. Englewood Cliffs, NJ: Prentice-Hall.

 ■ Wallas, G. (1926). The Art of Thought. New York: Harcourt, Brace & Co.

 ■ Wason, P. (1977). Self contradictions. In P. Johnson-Laird & P. Wason (Eds.), Thinking: Readings in cognitive science. Cambridge: Cambridge University Press.

 ■ Wason, P. C., & P. N. Johnson-Laird. (1972). Psychology of reasoning: Structure and content. Cambridge, MA: Harvard University Press.

 ■ Watson, J. (1930). Behaviorism. New York: W. W. Norton.

 ■ Watzlawick, P. (1984). Epilogue. In P. Watzlawick (Ed.), The invented reality. New York: W. W. Norton, 1984.

 ■ Weinberg, S. (1977). The first three minutes: A modern view of the origin of the uni verse. New York: Basic Books.

 ■ Weisberg, R. W. (1986). Creativity: Genius and other myths. New York: W. H. Freeman.

 ■ Weizenbaum, J. (1976). Computer power and human reason: From judgment to cal culation. San Francisco: W. H. Freeman.

 ■ Wertheimer, M. (1945). Productive thinking. New York: Harper & Bros.

 ■ Whitehead, A. N. (1925). Science and the modern world. New York: Macmillan.

 ■ Whorf, B. L. (1956). In J. B. Carroll (Ed.), Language, thought and reality: Selected writings of Benjamin Lee Whorf. Cambridge, MA: MIT Press.

 ■ Whyte, L. L. (1962). The unconscious before Freud. New York: Anchor Books.

 ■ Wiener, N. (1954). The human use of human beings. Boston: Houghton Mifflin.

 ■ Wiener, N. (1964). God & Golem, Inc.: A comment on certain points where cybernetics impinges on religion. Cambridge, MA: MIT Press.

 ■ Winograd, T. (1972). Understanding natural language. New York: Academic Press.

 ■ Winston, P. H. (1987). Artificial intelligence: A perspective. In E. L. Grimson & R. S. Patil (Eds.), AI in the 1980s and beyond (pp. 1-12). Cambridge, MA: MIT Press.

 ■ Winston, P. H. (Ed.) (1975). The psychology of computer vision. New York: McGrawHill.

 ■ Wittgenstein, L. (1953). Philosophical investigations. Oxford: Basil Blackwell.

 ■ Wittgenstein, L. (1958). The blue and brown books. New York: Harper Colophon.

 ■ Woods, W. A. (1975). What's in a link: Foundations for semantic networks. In D. G. Bobrow & A. Collins (Eds.), Representations and understanding: Studies in cognitive science (pp. 35-84). New York: Academic Press.

 ■ Woodworth, R. S. (1938). Experimental psychology. New York: Holt; London: Methuen (1939).

 ■ Wundt, W. (1904). Principles of physiological psychology (Vol. 1). E. B. Titchener (Trans.). New York: Macmillan.

 ■ Wundt, W. (1907). Lectures on human and animal psychology. J. E. Creighton & E. B. Titchener (Trans.). New York: Macmillan.

 ■ Young, J. Z. (1978). Programs of the brain. New York: Oxford University Press.

 ■ Ziman, J. (1978). Reliable knowledge: An exploration of the grounds for belief in science. Cambridge: Cambridge University Press.

SUBJECT AREA: Agricultural and food technology

[br]

[br]

[br]

As the son of an inn keeper, Nicolas Appert would have learned about pickling and brewing, but he chose to become a chef and confectioner, establishing himself in the rue des Lombards in Paris in 1780. He prospered there until about 1795, and in that year he began experimenting in ways to preserve foodstuffs, succeeding with soups, vegetables, juices, dairy products, jellies, jams and syrups. His method was to place food in glass jars, seal the jars with cork and sealing wax, then sterilize them by immersion in boiling water for a predetermined time.

In 1810 the French Government offered a 12,000 franc award to anyone succeeding in preserving high-quality foodstuffs for its army and navy. Appert won the award and in 1812 used the money to open the world's first food-bottling factory, La Maison Appert, in the town of Massey, near Paris. He established agents in all the major sea ports, recognizing the marine market as his most likely customer, and supplied products to Napoleon's troops in the field. By 1820 Appert's method was in use all over the United States, in spite of the simultaneous development of other containers of tin or other metals by an English merchant, Peter Durand, and the production of canned food products by the Bermondsey firm of Donkin \& Hall, London. The latter had opened the first canning factory in England in 1811.

Initially Appert used glass jars and bottles, but in 1822 he changed to tin-plated metal cans. To heat the cans he used an autoclave, which heated the water to a temperature higher than its boiling point. A hammer and chisel were needed to open cans until the invention of a can opener by an Englishman named Yates in 1855. Despite Appert's successes, he received little financial reward and died in poverty; he was buried in a common grave.

[br]

SUBJECT AREA: Civil engineering, Domestic appliances and interiors, Land transport, Mechanical, pneumatic and hydraulic engineering, Public utilities

[br]

[br]

[br]

Bramah was the son of a tenant farmer and was educated at the village school before being apprenticed to a local carpenter, Thomas Allot. He walked to London c.1773 and found work with a Mr Allen that included the repair of some of the comparatively rare water-closets of the period. He invented and patented one of his own, which was followed by a water cock in 1783. His next invention, a greatly improved lock, involved the devising of a number of special machine tools, for it was one of the first devices involving interchangeable components in its manufacture. In this he had the help of Henry Maudslay, then a young and unknown engineer, who became Bramah's foreman before setting up business on his own. In 1784 he moved his premises from Denmark Street, St Giles, to 124 Piccadilly, which was later used as a showroom when he set up a factory in Pimlico. He invented an engine for putting out fires in 1785 and 1793, in effect a reciprocating rotary-vane pump. He undertook the refurbishment and modernization of Norwich waterworks c.1793, but fell out with Robert Mylne, who was acting as Consultant to the Norwich Corporation and had produced a remarkably vague specification. This was Bramah's only venture into the field of civil engineering.

In 1797 he acted as an expert witness for Hornblower \& Maberley in the patent infringement case brought against them by Boulton and Watt. Having been cut short by the judge, he published his proposed evidence in "Letter to the Rt Hon. Sir James Eyre, Lord Chief Justice of the Common Pleas…etc". In 1795 he was granted his most important patent, based on Pascal's Hydrostatic Paradox, for the hydraulic press which also incorporated the concept of hydraulics for the transmission of both power and motion and was the foundation of the whole subsequent hydraulic industry. There is no truth in the oft-repeated assertion originating from Samuel Smiles's Industrial Biography (1863) that the hydraulic press could not be made to work until Henry Maudslay invented the self-sealing neck leather. Bramah used a single-acting upstroking ram, sealed only at its base with a U-leather. There was no need for a neck leather.

He also used the concept of the weight-loaded, in this case as a public-house beer-engine. He devised machinery for carbonating soda water. The first banknote-numbering machine was of his design and was bought by the Bank of England. His development of a machine to cut twelve nibs from one goose quill started a patent specification which ended with the invention of the fountain pen, patented in 1809. His coach brakes were an innovation that was followed bv a form of hydropneumatic carriage suspension that was somewhat in advance of its time, as was his patent of 1812. This foresaw the introduction of hydraulic power mains in major cities and included the telescopic ram and the air-loaded accumulator.

In all Joseph Bramah was granted eighteen patents. On 22 March 1813 he demonstrated a hydraulic machine for pulling up trees by the roots in Hyde Park before a large crowd headed by the Duke of York. Using the same machine in Alice Holt Forest in Hampshire to fell timber for ships for the Navy, he caught a chill and died soon after at his home in Pimlico.

[br]

SUBJECT AREA: Mechanical, pneumatic and hydraulic engineering

[br]

[br]

[br]

William Buckle was the son of Thomas Buckle (1759–1849), a millwright who later assisted the 9th Earl of Dundonald (1749–1831) in his various inventions, principally machines for the manufacture of rope. Soon after the birth of William, the family moved from Alnwick to Hull, Yorkshire, where he received his education. The family again moved c.1808 to London, and William was apprenticed to Messrs Woolf \& Edwards, millwrights and engineers of Lambeth. During his apprenticeship he attended evening classes at a mechanical drawing school in Finsbury, which was then the only place of its kind in London.

After completing his apprenticeship, he was sent by Messrs Humphrys to Memel in Prussia to establish steamboats on the rivers and lakes there under the patronage of the Prince of Hardenburg. After about four years he returned to Britain and was employed by Boulton, Watt \& Co. to install the engines in the first steam mail packet for the service between Dublin and Holyhead. He was responsible for the engines of the steamship Lightning when it was used on the visit of George IV to Ireland.

About 1824 Buckle was engaged by Boulton, Watt \& Co. as Manager of the Soho Foundry, where he is credited with introducing the first large screw-cutting lathe. At Soho about 700 or 800 men were employed on a wide variety of engineering manufacture, including coining machinery for mints in many parts of the world, with some in 1826 for the Mint at the Soho Manufactory. In 1851, following the recommendations of a Royal Commission, the Royal Mint in London was reorganized and Buckle was asked to take the post of Assistant Coiner, the senior executive officer under the Deputy Master. This he accepted, retaining the post until the end of his life.

At Soho, Buckle helped to establish a literary and scientific institution to provide evening classes for the apprentices and took part in the teaching. He was an original member of the Institution of Mechanical Engineers, which was founded in Birmingham in January 1847, and a member of their Council from then until 1855. He contributed a number of papers in the early years, including a memoir of William Murdock whom he had known at Soho; he resigned from the Institution in 1856 after his move to London. He was an honorary member of the London Association of Foreman Engineers.

[br]

SUBJECT AREA: Ports and shipping

[br]

[br]

[br]

Chapman was born on the west coast of Sweden and was the son of a British naval officer serving in the Swedish Navy. In 1738 he followed in his father's footsteps by joining the naval dockyards as a shipbuilding apprentice. Subsequent experience was gained in other shipyards and by two years (1741–3) in London. His assiduous note taking and study of British shipbuilding were noticed and he was offered appointments in England, but these were refused and he returned to Sweden in 1744 and for a while operated as a ship repairer in partnership with a man called Bagge. In 1749 he started out on his own. He began with a period of study in Stockholm and in London, where he worked for a while under Thomas Simpson, and then went on to France and the Netherlands. During his time in England he learned the art of copper etching, a skill that later stood him in good stead. After some years he was appointed Deputy Master Shipwright to the Swedish Navy, and in 1760 he became Master Shipwright at Sveaborg (now Suomenlinna), the fortress island of Helsinki. There Chapman excelled by designing the coastal defence or skerry fleet that to this day is accepted as beautiful and fit for purpose. He understood the limitations of ship design and throughout his life strove to improve shipbuilding by using the advances in mathematics and science that were then being made. His contribution to the rationalization of thought in ship theory cannot be overemphasized.

In 1764 he became Chief Shipbuilder to the Swedish Navy, with particular responsibility for Karlskrona and for Stockholm. He assisted in the new rules for the classification of warships and later introduced standardization to the naval dockyards. He continued to rise in rank and reputation until his retirement in 1793, but to the end his judgement was sought on many matters concerning not only ship design but also the administration of the then powerful Swedish Navy.

His most important bequest to his profession is the great book Architectura Navalis Mercatoria, first published in 1768. Later editions were larger and contained additional material. This volume remains one of the most significant works on shipbuilding.

[br]

SUBJECT AREA: Medical technology

[br]

[br]

[br]

Apprenticed in surgery to his uncle in Rouen, he became a student surgeon in the French Army in 1713. In 1719 he was honoured for his work during an outbreak of plague in Marseille, and in 1723 he was appointed Surgeon to the Hôtel-Dieu. In 1746 he moved to Paris, and in 1749 he became Surgeon-Oculist to Louis XV. Although he had, like many others, performed couchings (intra-ocular displacement of the lens) for the treatment of cataracts, his dissection of cadavers at Marseille led him to attempt the actual removal from the eye of the opaque lens. He performed the first such operation on a monk of Provence on 8 April 1745, and by 1753 he was able to report 115 cases with 100 successes. The difficulties of the technique precluded its immediate adoption, and couching remained the standard treatment for much of the century.

[br]

SUBJECT AREA: Ports and shipping

[br]

[br]

[br]

Francis Egerton was the younger of the two surviving sons of Scroop, 1st Duke of Bridgewater, and on the death of his brother, the 2nd Duke, he succeeded to the title in 1748. Until that time he had received little or no education as his mother considered him to be of feeble intellect. His guardians, the Duke of Bedford and Lord Trentham, decided he should be given an opportunity and sent him to Eton in 1749. He remained there for three years and then went on the "grand tour" of Europe. During this period he saw the Canal du Midi, though whether this was the spark that ignited his interest in canals is hard to say. On his return to England he indulged in the social round in London and raced at Newmarket. After two unsuccessful attempts at marriage he retired to Lancashire to further his mining interests at Worsley, where the construction of a canal to Manchester was already being considered. In fact, the Act for the Bridgewater Canal had been passed at the time he left London. John Gilbert, his land agent at Worsley, encouraged the Duke to pursue the canal project, which had received parliamentary approval in March 1759. Brindley had been recommended on account of his work at Trentham, the estate of the Duke's brother-in-law, and Brindley was consulted and subsequently appointed Engineer; the canal opened on 17 July 1761. This was immediately followed by an extension project from Longford Brook to Runcorn to improve communications between Manchester and Liverpool; this was completed on 31 December 1772, after Brindley's death. The Duke also invested heavily in the Trent \& Mersey Canal, but his interests were confined to his mines and the completed canals for the rest of his life.

It is said that he lacked a sense of humour and even refused to read books. He was untidy in his dress and habits yet he was devoted to the Worsley undertakings. When travelling to Worsley he would have his coach placed on a barge so that he could inspect the canal during the journey. He amassed a great fortune from his various activities, but when he died, instead of leaving his beloved canal to the beneficiaries under his will, he created a trust to ensure that the canal would endure; the trust did not expire until 1903. The Duke is commemorated by a large Corinthian pillar, which is now in the care of the National Trust, in the grounds of his mansion at Ashridge, Hertfordshire.

[br]

SUBJECT AREA: Paper and printing

[br]

[br]

[br]

While in business as a goldsmith and jeweller, he came across the earliest known attempt to make stereotypes, that by Van der Meys of Leiden in the sixteenth century. He soldered types to the bases of a bed of type, but the process proved too expensive to be adopted. Ged took out a patent of privilege in 1725 to develop Mey's method, agreeing with a printer that if they could make casts of made-up pages of type they "would make a fortune". After many experiments to find a suitable metal, he arrived at an alloy similar to type metal. However, Ged's efforts to promote his stereotypes were blocked by the indifference of the printers and the opposition of the compositors. He tried his luck in London but failed again for much the same reason as in Edinburgh. Thither he returned, but he died in poverty.

[br]

SUBJECT AREA: Horology, Ports and shipping

[br]

[br]

[br]

John Harrison was the son of a carpenter and was brought up to that trade. He was largely self-taught and learned mechanics from a copy of Nicholas Saunderson's lectures that had been lent to him. With the assistance of his younger brother, James, he built a series of unconventional clocks, mainly of wood. He was always concerned to reduce friction, without using oil, and this influenced the design of his "grasshopper" escapement. He also invented the "gridiron" compensation pendulum, which depended on the differential expansion of brass and steel. The excellent performance of his regulator clocks, which incorporated these devices, convinced him that they could also be used in a sea dock to compete for the longitude prize. In 1714 the Government had offered a prize of £20,000 for a method of determining longitude at sea to within half a degree after a voyage to the West Indies. In theory the longitude could be found by carrying an accurate timepiece that would indicate the time at a known longitude, but the requirements of the Act were very exacting. The timepiece would have to have a cumulative error of no more than two minutes after a voyage lasting six weeks.

In 1730 Harrison went to London with his proposal for a sea clock, supported by examples of his grasshopper escapement and his gridiron pendulum. His proposal received sufficient encouragement and financial support, from George Graham and others, to enable him to return to Barrow and construct his first sea clock, which he completed five years later. This was a large and complicated machine that was made out of brass but retained the wooden wheelwork and the grasshopper escapement of the regulator clocks. The two balances were interlinked to counteract the rolling of the vessel and were controlled by helical springs operating in tension. It was the first timepiece with a balance to have temperature compensation. The effect of temperature change on the timekeeping of a balance is more pronounced than it is for a pendulum, as two effects are involved: the change in the size of the balance; and the change in the elasticity of the balance spring. Harrison compensated for both effects by using a gridiron arrangement to alter the tension in the springs. This timekeeper performed creditably when it was tested on a voyage to Lisbon, and the Board of Longitude agreed to finance improved models. Harrison's second timekeeper dispensed with the use of wood and had the added refinement of a remontoire, but even before it was tested he had embarked on a third machine. The balance of this machine was controlled by a spiral spring whose effective length was altered by a bimetallic strip to compensate for changes in temperature. In 1753 Harrison commissioned a London watchmaker, John Jefferys, to make a watch for his own personal use, with a similar form of temperature compensation and a modified verge escapement that was intended to compensate for the lack of isochronism of the balance spring. The time-keeping of this watch was surprisingly good and Harrison proceeded to build a larger and more sophisticated version, with a remontoire. This timekeeper was completed in 1759 and its performance was so remarkable that Harrison decided to enter it for the longitude prize in place of his third machine. It was tested on two voyages to the West Indies and on both occasions it met the requirements of the Act, but the Board of Longitude withheld half the prize money until they had proof that the timekeeper could be duplicated. Copies were made by Harrison and by Larcum Kendall, but the Board still continued to prevaricate and Harrison received the full amount of the prize in 1773 only after George III had intervened on his behalf.

Although Harrison had shown that it was possible to construct a timepiece of sufficient accuracy to determine longitude at sea, his solution was too complex and costly to be produced in quantity. It had, for example, taken Larcum Kendall two years to produce his copy of Harrison's fourth timekeeper, but Harrison had overcome the psychological barrier and opened the door for others to produce chronometers in quantity at an affordable price. This was achieved before the end of the century by Arnold and Earnshaw, but they used an entirely different design that owed more to Le Roy than it did to Harrison and which only retained Harrison's maintaining power.

[br]

See also: Burgi, Jost; Huygens, Christiaan

SUBJECT AREA: Medical technology

[br]

[br]

[br]

In 1770, following a local surgical apprenticeship in Gloucestershire, he became a resident pupil in London under John Hunter. In 1773 he returned to Berkeley to practise, but he continued correspondence with Hunter on a variety of topics of natural history, including the study of earthworms and hibernation.

From his apprentice days he had known of the country belief that an attack of cowpox would protect against smallpox. Soon after 1775 he had been in touch with Hunter, who gave him the celebrated advice to "trie the experiment". However, it was not until 14 May 1796 that he made the first vaccination from a case of cowpox. The practice of vaccination from mild cases of smallpox was already well established.

He was unable to undertake further observations until 1798, when he published the results of twenty-two more cases. The procedure gained wide acceptance and in 1802 he received a parliamentary award of £10,000; the Royal Jennerian Society for the promotion of smallpox vaccination was founded in 1803. In 1806 he was awarded a further £20,000. He received his first degree, of MD, from Oxford in 1813.

[br]

SUBJECT AREA: Land transport, Ports and shipping, Railways and locomotives

[br]

[br]

[br]

Stevens, a wealthy landowner with an estate at Hoboken on the Hudson River, had his attention drawn to the steamboat of John Fitch in 1786, and thenceforth devoted much of his time and fortune to developing steamboats and mechanical transport. He also had political influence and it was at his instance that Congress in 1790 passed an Act establishing the first patent laws in the USA. The following year Stevens was one of the first recipients of a US patent. This referred to multi-tubular boilers, of both watertube and firetube types, and antedated by many years the work of both Henry Booth and Marc Seguin on the latter.

A steamboat built in 1798 by John Stevens, Nicholas J.Roosevelt and Stevens's brother-in-law, Robert R.Livingston, in association was unsuccessful, nor was Stevens satisfied with a boat built in 1802 in which a simple rotary steam-en-gine was mounted on the same shaft as a screw propeller. However, although others had experimented earlier with screw propellers, when John Stevens had the Little Juliana built in 1804 he produced the first practical screw steamboat. Steam at 50 psi (3.5 kg/cm²) pressure was supplied by a watertube boiler to a single-cylinder engine which drove two contra-rotating shafts, upon each of which was mounted a screw propeller. This little boat, less than 25 ft (7.6 m) long, was taken backwards and forwards across the Hudson River by two of Stevens's sons, one of whom, R.L. Stevens, was to help his father with many subsequent experiments. The boat, however, was ahead of its time, and steamships were to be driven by paddle wheels until the late 1830s.

In 1807 John Stevens declined an invitation to join with Robert Fulton and Robert R.Living-ston in their development work, which culminated in successful operation of the PS Clermont that summer; in 1808, however, he launched his own paddle steamer, the Phoenix. But Fulton and Livingston had obtained an effective monopoly of steamer operation on the Hudson and, unable to reach agreement with them, Stevens sent Phoenix to Philadelphia to operate on the Delaware River. The intervening voyage over 150 miles (240 km) of open sea made Phoenix the first ocean-going steamer.

From about 1810 John Stevens turned his attention to the possibilities of railways. He was at first considered a visionary, but in 1815, at his instance, the New Jersey Assembly created a company to build a railway between the Delaware and Raritan Rivers. It was the first railway charter granted in the USA, although the line it authorized remained unbuilt. To demonstrate the feasibility of the steam locomotive, Stevens built an experimental locomotive in 1825, at the age of 76. With flangeless wheels, guide rollers and rack-and-pinion drive, it ran on a circular track at his Hoboken home; it was the first steam locomotive to be built in America.

[br]

See also: Allen, Horatio; Cooper, Peter

SUBJECT AREA: Chemical technology

[br]

[br]

[br]

Ward is perhaps better described as a "quack" than a medical doctor. His remedies, one containing a dangerous quantity of antimony, were dubious to say the least. A fraudulent attempt to enter Parliament in 1717 forced him to leave the country quickly. After his pardon in 1733, he returned to London and established a successful practice. His medical prowess is immortalized in Hogarth's picture The Harlot's Progress.

Sulphuric acid had been an important chemical for centuries and Ward found that he needed large quantities of it to make his remedies. He set up works to manufacture it at Twickenham, near London, in 1736 and then at Richmond three years later. His process consisted of burning a mixture of saltpetre (nitre; potassium nitrate) and sulphur in the neck of a large glass globe containing a little water. Dilute sulphuric acid was thereby formed, which was concentrated by distillation. Although the method was not new, having been described in the seventeenth century by the German chemist Johann Glauber, Ward was granted a patent for his process in 1749. An important feature was the size of the globes, which had no less than fifty gallons' capacity, which must have entailed considerable skill on the part of the glassblowers. Through the adoption of Ward's process, the price of this essential commodity fell from £2 per pound to only 2 shillings. It provided the best method of manufacture until the advent of the lead-chamber process invented by John Roebuck.

[br]