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SUBJECT AREA: Photography, film and optics

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A man of considerable intellect, Cros occupied himself with studies of topics as diverse as Sanskrit and the synthesis of precious stones. He was in particular interested in the possibility of colour photography, and deposited an account of his theories in a sealed envelope with the Académie des Sciences on 2 December 1867, with instructions that it should be opened in 1876. Learning of a forthcoming presentation on colour photography by Ducos du Hauron at the Société Française de Photographie, he arranged for the contents of his communication to be published on 25 February 1869 in Les Mondes. At the Société's meeting on 7 May 1869, Cros's letter was read and samples of colour photography from Ducos du Hauron were shown. Both had arrived at similar conclusions: that colour photography was possible with the analysis of colours using negatives exposed through red, green and blue filters, as demonstrated by Clerk Maxwell in 1861. These records could be reproduced by combining positive images produced in blue-green, magenta and yellow pigments or dyes. Cros and Ducos du Hauron had discovered the principle of subtractive colour photography, which is used in the late twentieth century. In 1878 Cros designed the Chromometre, a device for measuring colours by mixing red, green and blue light, and described the device in a paper to the Société Française de Photographie on 10 January 1879. With suitable modification, the device could be used as a viewer for colour photographs, combining red, green and blue positives. In 1880 he patented the principle of imbibition printing, in which dye taken up by a gelatine relief image could be transferred to another support. This principle, which he called hydrotypie, readily made possible the production of three-colour subtractive photographic prints.

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SUBJECT AREA: Aerospace

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Between 1911 and 1914 Heinrich Focke and Georg Wulf built a monoplane and some years later, in 1924, they founded the Focke-Wulf company. They designed and built a variety of civil and military aircraft including the F 19Ente, a tail-first design of 1927. This canard layout was thought to be safer than conventional designs but, unfortunately, it crashed, killing Wulf. Around 1930 Focke became interested in rotary-wing aircraft, and in 1931 he set up a company with Gerd Achgelis to conduct research in this field. The Focke-Wulf company took out a licence to build Cierva autogiros. Focke designed an improved autogiro, the Fw 186, which flew in 1938; it was entered for a military competition, but it was beaten by a fixed-wing aircraft, the Fieseler Storch. In May 1935 Focke resigned from Focke-Wulf to concentrate on helicopter development with the Focke-Achgelis company. His first design was the Fa 61 helicopter, which utilized the fuselage and engine of a conventional aeroplane but instead of wings had two out-riggers, each carrying a rotor. The engine drove these rotors in opposite directions to counteract the adverse torque effect (with a single rotor the fuselage tends to rotate in the opposite direction to the rotor). Following its first flight on 26 June 1936, the Fa 61 went on to break several world records. However, it attracted more public attention when it was flown inside the huge Deutschlandhalle in Berlin by the famous female test pilot Hanna Reitsch in February 1938. Focke continued to develop his helicopter projects for the Focke-Achgelis company and produced the Fa 223 Drache in 1940. This used twin contra-rotating rotors, like the Fa 61, but could carry six people. Its production was hampered by allied bombing of the factory. During the Second World War Focke- Achgelis also produced a rotor kite which could be towed behind a U-boat to provide a flying "crow's nest", as well as designs for an advanced convertiplane (part aeroplane, part helicopter). After the war, Focke worked in France, the Netherlands and Brazil, then in 1954 he became Professor of Aeroplane and Helicopter Design at the University of Stuttgart.

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SUBJECT AREA: Photography, film and optics

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Auguste and his brother Louis Lumière (b. 5 October 1864 Besançon, France; d. 6 June 1948 Bandol, France) developed the photographic plate-making business founded by their father, Charles Antoine Lumière, at Lyons, extending production to roll-film manufacture in 1887. In the summer of 1894 their father brought to the factory a piece of Edison kinetoscope film, and said that they should produce films for the French owners of the new moving-picture machine. To do this, of course, a camera was needed; Louis was chiefly responsible for the design, which used an intermittent claw for driving the film, inspired by a sewing-machine mechanism. The machine was patented on 13 February 1895, and it was shown on 22 March 1895 at the Société d'Encouragement pour l'In-dustrie Nationale in Paris, with a projected film showing workers leaving the Lyons factory. Further demonstrations followed at the Sorbonne, and in Lyons during the Congrès des Sociétés de Photographie in June 1895. The Lumières filmed the delegates returning from an excursion, and showed the film to the Congrès the next day. To bring the Cinématographe, as it was called, to the public, the basement of the Grand Café in the Boulevard des Capuchines in Paris was rented, and on Saturday 28 December 1895 the first regular presentations of projected pictures to a paying public took place. The half-hour shows were an immediate success, and in a few months Lumière Cinématographes were seen throughout the world.

The other principal area of achievement by the Lumière brothers was colour photography. They took up Lippman's method of interference colour photography, developing special grainless emulsions, and early in 1893 demonstrated their results by lighting them with an arc lamp and projecting them on to a screen. In 1895 they patented a method of subtractive colour photography involving printing the colour separations on bichromated gelatine glue sheets, which were then dyed and assembled in register, on paper for prints or bound between glass for transparencies. Their most successful colour process was based upon the colour-mosaic principle. In 1904 they described a process in which microscopic grains of potato starch, dyed red, green and blue, were scattered on a freshly varnished glass plate. When dried the mosaic was coated with varnish and then with a panchromatic emulsion. The plate was exposed with the mosaic towards the lens, and after reversal processing a colour transparency was produced. The process was launched commercially in 1907 under the name Autochrome; it was the first fully practical single-plate colour process to reach the public, remaining on the market until the 1930s, when it was followed by a film version using the same principle.

Auguste and Louis received the Progress Medal of the Royal Photographic Society in 1909 for their work in colour photography. Auguste was also much involved in biological science and, having founded the Clinique Auguste Lumière, spent many of his later years working in the physiological laboratory.

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SUBJECT AREA: Architecture and building, Civil engineering

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Nervi early established a reputation in the use of reinforced concrete with his stadium in Florence (1930–2). This elegant concrete structure combines graceful curves with functional solidity and is capable of seating some 35,000 spectators. The stadium was followed by the aircraft hangars built for the Italian Air Force at Orvieto and Ortebello, in which he spanned the vast roofs of the hangars with thin-shelled vaults supported by precast concrete beams and steel-reinforced ribs. The structural strength and subtle curves of these ribbed roofs set the pattern for Nervi's techniques, which he subsequently varied and elaborated on to solve problems that arose in further commissions.

Immediately after the Second World War Italy was short of supplies of steel for structural purposes so, in contrast to the USA, Britain and Germany, did not for some years construct any quantity of steel-framed rectangular buildinngs used for offices, housing or industrial use. It was Nervi who led the way to a ferroconcrete approach, using a new type of structure based on these materials in the form of a fine steel mesh sprayed with cement mortar and used to roof all kinds of structures. It was a method that resulted in expressionist curves instead of rectangular blocks, and the first of his great exhibition halls at Turin (1949), with a vault span of 240 ft (73 m), was an early example of this technique. Nervi continued to create original and beautiful ferroconcrete structures of infinite variety: for example, the hall at the Lido di Roma, Ostia; the terme at Chianciano; and the three buildings that he designed for the Rome Olympics in 1960. The Palazzetto dello Sport is probably the most famous of these, for which he co-operated with the architect Annibale Vitellozzi to construct a small sports palace seating 5,000 spectators under a concrete "big top" of 194 ft (59 m) diameter, its enclosing walls supported by thirtysix guy ropes of concrete; inside, the elegant roof displays a floral quality. In 1960 Nervi returned to Turin to build his imaginative Palace of Labour for the centenary celebrations of Garibaldi and Victor Emmanuel in the city. This vast hall, like the Crystal Palace in England a century earlier (see Paxton), had to be built quickly and be suitable for later adaptation. It was therefore constructed partly in steel, and the metal supporting columns rose to palm-leaf capitals reminiscent of those in ancient Nile palaces.

Nervi's aim was always to create functional buildings that simultaneously act by their aesthetic qualities as an effective educational influence. Functionalism for Nervi never became "brutalism". In consequence, his work is admired by the lay public as well as by architects. He collaborated with many of the outstanding architects of the day: with Gio Ponti on the Pirelli Building in Milan (1955–9); with Zehrfuss and Breuer on the Y-plan UNESCO Building in Paris (1953–7); and with Marcello Piacentini on the 16,000-seat Palazzo dello Sport in Rome. Nervi found time to write a number of books on building construction and design, lectured in the Universities of Rio de Janiero and Buenos Aires, and was for many years Professor of Technology and Technique of Construction in the Faculty of Architecture at the University of Rome. He continued to design new structures until well into the 1970s.

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SUBJECT AREA: Medical technology

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Of a medical family, he graduated at Athens in 1904. After postgraduate study at Jena, Freiburg and Munich, he returned to Greece and turned to an academic career. After a year at the Oceanographie Institute at Monaco and a period in Paris, he again returned to Greece and in 1911 served in the army in the Balkan War.

In 1913 he emigrated to the United States and was appointed to the pathology department of New York Hospital and Cornell Medical College. He became Emeritus Professor of Clinical Anatomy at Cornell in 1951. In 1961 he moved to Florida to head the Miami Cancer Institute, but he died shortly thereafter.

Almost all his research was devoted to the physiology of reproduction and exfoliative cyto-logy, and from his studies in 1917 on vaginal discharge in animals he developed his human studies culminating in cancer diagnostic tests, which after some early scepticism soon gained wide acceptance as a routine screening technique. There are laboratories at both Cornell and Miami that are named after him.

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SUBJECT AREA: Paper and printing

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Soon after his birth, Senefelder's family moved to Mannheim, where his father, an actor, had obtained a position in the state theatre. He was educated there, until he gained a scholarship to the university of Ingolstadt. The young Senefelder wanted to follow his father on to the stage, but the latter insisted that he study law. He nevertheless found time to write short pieces for the theatre. One of these, when he was 18 years old, was an encouraging success. When his father died in 1791, he gave up his studies and took to a new life as poet and actor. However, the wandering life of a repertory actor palled after two years and he settled for the more comfortable pursuit of playwriting. He had some of his work printed, which acquainted him with the art of printing, but he fell out with his bookseller. He therefore resolved to carry out his own printing, but he could not afford the equipment of a conventional letterpress printer. He began to explore other ways of printing and so set out on the path that was to lead to an entirely new method.

He tried writing in reverse on a copper plate with some acid-resisting material and etching the plate, to leave a relief image that could then be inked and printed. He knew that oily substances would resist acid, but it required many experiments to arrive at a composition of wax, soap and charcoal dust dissolved in rainwater. The plates wore down with repeated polishing, so he substituted stone plates. He continued to etch them and managed to make good prints with them, but he went on to make the surprising discovery that etching was unnecessary. If the image to be printed was made with the oily composition and the stone moistened, he found that only the oily image received the ink while the moistened part rejected it. The printing surface was neither raised (as in letterpress printing) nor incised (as in intaglio printing): Senefelder had discovered the third method of printing.

He arrived at a workable process over the years 1796 to 1799, and in 1800 he was granted an English patent. In the same year, lithography (or "writing on stone") was introduced into France and Senefelder himself took it to England, but it was some time before it became widespread; it was taken up by artists especially for high-quality printing of art works. Meanwhile, Senefelder improved his techniques, finding that other materials, even paper, could be used in place of stone. In fact, zinc plates were widely used from the 1820s, but the name "lithography" stuck. Although he won world renown and was honoured by most of the crowned heads of Europe, he never became rich because he dissipated his profits through restless experimenting.

With the later application of the offset principle, initiated by Barclay, lithography has become the most widely used method of printing.

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SUBJECT AREA: Steam and internal combustion engines

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In 1869 Stumpf was commissioned by the Pope Manufacturing Company of Hertford, Connecticut, to set up two triple-expansion, vertical, Corliss pumping engines. He tried to simplify this complicated system and started research with the internal combustion engine and the steam turbine particularly as his models. The construction of steam turbines in several stages where the steam passed through in a unidirectional flow was being pursued at that time, and Stumpf wondered whether it would be possible to raise the efficiency of a reciprocating steam engine to the same thermal level as the turbine by the use of the uniflow principle.

Stumpf began to investigate these principles without studying the work of earlier pioneers like L.J. Todd, which he later thought would have led him astray. It was not until 1908, when he was Professor at the Institute of Technology in Berlin- Charlottenburg, that he patented his successful "una-flow" steam engine. In that year he took out six British patents for improvements in details on his original one Stumpf fully realized the thermal advantages of compressing the residual steam and was able to evolve systems of coping with excessive compression when starting. He also placed steam-jackets around the ends of the cylinder. Stumpf's first engine was built in 1908 by the Erste B runner Maschinenfabrik-Gesellschaft, and licences were taken out by many other manufacturers, including those in Britain and the USA. His engine was developed into the most economical type of reciprocating steam engine.

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ἵνα (Hom.+) conjunction, the use of which increased considerably in H. Gk. as compared w. earlier times because it came to be used periphrastically for the inf. and impv. B-D-F §369; 379; 388–94 al.; Mlt. index; Rob. index.

① marker to denote purpose, aim, or goal, in order that, that, final sense

ⓐ w. subjunctive, not only after a primary tense, but also (in accordance w. Hellenistic usage) after a secondary tense (B-D-F §369, 1; Rob. 983; Mlt-Turner 100–102; JKnuenz, De enuntiatis Graecorum finalibus 1913, 15ff):

α. after a present tense Mk 4:21; 7:9; Lk 6:34; 8:16; J 3:15; 5:34; 6:30; Ac 2:25 (Ps 15:8); 16:30; Ro 1:11; 3:19; 11:25; 1 Cor 9:12; Gal 6:13; Phil 3:8; Hb 5:1; 6:12; 1J 1:3 and oft.

β. after a perfect Mt 1:22; 21:4; J 5:23, 36; 6:38; 12:40, 46; 14:29; 16:1, 4; 17:4; 1 Cor 9:22b al.

γ. after a pres. or aor. impv. Mt 7:1; 14:15; 17:27; 23:26; Mk 11:25; J 4:15; 5:14; 10:38; 1 Cor 7:5; 11:34; 1 Ti 4:15; Tit 3:13. Likew. after the hortatory subj. in the first pers. pl. Mk 1:38; Lk 20:14; J 11:16; Hb 4:16.

δ. after a fut. Lk 16:4; 18:5; J 5:20; 14:3, 13, 16; 1 Cor 15:28; Phil 1:26.

ε. after a secondary tense: impf. Mk 3:2; 6:41; 8:6; Lk 6:7; 18:15 al.—Plpf. J 4:8.—Aor. Mt 19:13; Mk 3:14; 11:28; 14:10; Lk 19:4, 15; J 7:32; 12:9; Ro 7:4; 2 Cor 8:9; Hb 2:14; 11:35; 1J 3:5.

ⓑ w. fut. ind. (LXX e.g. Sus 28; En 15:5; TestSol 13:7; SIG 888, 87ff; OGI 665, 35; POxy 299; 1071, 5 ἵνα ποιήσουσιν καὶ πέμψουσιν; Gen 16:2 [Swete; ARahlfs, Genesis 1926 v.l.] al.; Just., D. 115, 6), beside which the aor. subj. is usu. found in the mss. (B-D-F §369, 2; Rob. 984; Mlt-Turner 100) ἵνα σταυρώσουσιν Mk 15:20 v.l. ἵνα ἐρεῖ σοι Lk 14:10. ἵνα δώσουσιν 20:10. ἵνα θεωρήσουσιν J 7:3. ἵνα δώσει 17:2 v.l.; Rv 8:3. ἐπισκιάσει Ac 5:15 v.l.; ξυρήσονται 21:24. κερδανῶ 1 Cor 9:21 v.l.; καυθήσομαι 13:3 v.l. καταδουλώσουσιν Gal 2:4. κερδηθήσονται 1 Pt 3:1. ἵνα … δηλώσεις Hv 3, 8, 10. The fut. ind. is also used oft. when ἵνα has no final mng., esp. in Rv: 1 Cor 9:18 (ἵνα as answer, as Epict. 4, 1, 99); Rv 6:4, 11; 9:4, 5, 20; 13:12; 14:13; 22:14. Occasionally the fut. ind. and aor. subj. are found in the same sentence Rv 3:9; cp. also Phil 2:10f v.l. (on this interchange s. Reinhold 106; JVogeser, Zur Sprache d. griech. Heiligenlegenden, diss. Munich 1907, 34f; Knuenz, op. cit. 23ff; 39; Dio Chrys. 26 [43], 7 ἵνα μὴ παρῶ … μηδὲ ἕξουσιν; POxy 1068, 5 ἵνα διαπέμψεται, ἵνα δυνηθῶ …).—On the interchange of pres. subj. and fut. ind. in J 15:8 s. GLee, Biblica 51, ’70, 239f.

ⓒ ἵνα is found w. the pres. ind. only in passages where the subj. is also attested in the mss.; its presence is prob. due to corruption of the text (B-D-F §369, 6; Rob. 984f; Mlt-Turner 100f. But see the clear instance in PAnt III, 188, 15: ἵνα μή ἐσμεν, and cp. BGU 1081, 3 ἐχάρην, ἵνα σὲ ἀσπάζομαι; TestNapht 8:2; PassPtPl 60 [Aa I, 170, 8] ἵνα κατευθύνει; AcPtPl 58 [Aa I, 203, 17]; AcPlTh 11 [Aa I, 243, 11 v.l.]). φυσιοῦσθε 1 Cor 4:6 and ζηλοῦτε Gal 4:17 could be subj. (B-D-F §91; Rob. 984). But Gal 6:12 v.l. διώκονται; Tit 2:4 v.l. σωφρονίζουσιν; J 5:20 v.l. θαυμάζετε; 17:3 v.l. γινώσκουσιν; 1J 5:20 v.l. γινώσκομεν; Rv 12:6 v.l. τρέφουσιν; 13:17 v.l. δύναται; ἵνα σύνετε B 6:5 v.l. (in text συνιῆτε; v.l. συνῆτε); ἵνα … ᾂδετε IEph 4:2 (Lghtf. ᾂδητε); μετέχετε ibid. (v.l. μετέχητε). διατάσσομαι ITr 3:3 (v.l. διατάσσωμαι). βλασφημεῖται 8:2 v.l.

ⓓ The opt. after ἵνα is not used in our lit. (B-D-F §369, 1; 386, 3; Rob. 983). Mk 12:2 v.l. ἵνα λάβοι (for λάβῃ). Eph 1:17 ἵνα δῴη (v.l. δῷ) is certainly subj., and δώῃ is the correct rdg. (B-D-F §95, 2; Mlt. 196f). Likew. ἵνα παραδοῖ J 13:2.

ⓔ after a demonstrative (Epict. 2, 5, 16 ἐν τούτῳ … ἵνα) εἰς τοῦτο for this (purpose, namely) that J 18:37; 1J 3:8; Ro 14:9; 2 Cor 2:9; 1 Pt 3:9; 4:6; B 5:1, 11; 14:5. εἰς αὐτὸ τοῦτο for this very purpose, that Eph 6:22; Col 4:8. διὰ τοῦτο for this reason … that (Himerius, Or. 14, 3) 2 Cor 13:10; Phlm 15; 1 Ti 1:16; the ἵνα clause can also precede διὰ τοῦτο J 1:31. τούτου χάριν … ἵνα for this reason … that Tit 1:5.

ⓕ ἵνα with ‘I should like to say this’ supplied is found also in earlier Gk (Soph. Ph. 989) Mk 2:10 (B-D-F §470, 3. Differently [a virtual impv.] DSharp, ET 38, 1927, 427f). The necessary supplement precedes in ἵνα δείξῃ (he said this), in order to show B 7:5.—Cp. J 15:13.

② marker of objective, that. Very oft. the final mng. is greatly weakened or disappears altogether. In this case the ἵνα-constr. serves as a substitute for an inf. that supplements a verb, or an acc. w. inf. (cp. Od. 3, 327 and a spurious document in Demosth. 18, 155. Later very common, also in ins, pap [Rdm.² 191ff]; LXX).

ⓐ after verbs w. the sense

α. ‘wish, desire, strive’ (PGiss 17, 5 [II A.D.] ἠγωνίασα … ἵνα ἀκούσω; BGU 1081, 3 ἐχάρην, ἵνα σὲ ἀσπάζομαι) θέλειν ἵνα (TestAbr A 19, 101, 9 [Stone p. 50]) Mt 7:12; Mk 9:30; 10:35; Lk 6:31; J 17:24; 1 Cor 14:5. βουλεύεσθαι J 11:53; 12:10. συμβουλεύεσθαι Mt 26:4. συντίθεσθαι J 9:22. ἀγαλλιᾶσθαι joyfully strive after 8:56 (s. ἀγαλλιάω). ζητεῖν 1 Cor 4:2; 14:12; AcPlCor 2:8. ζηλοῦν 14:1. εὔχεσθαι ‘wish’ IPhld 6:3.

β. ‘take care, be ashamed, be afraid’ φυλάσσεσθαι 2 Pt 3:17. προσέχειν take care that B 16:8. βλέπειν see to it, that 1 Cor 16:10.

γ. ‘request, demand’: δεῖσθαι request (Dionys. Hal. 4, 12, 1; Lucian, Dom. 9; Jos., Ant. 6, 321; 12, 125 al.) Lk 9:40; 21:36; 22:32; B 12:7; Pol 6:2; Hv 3, 1, 2; Hs 5, 4, 1. ἐρωτᾶν request (s. ἐρωτάω 2) Mk 7:26; Lk 7:36; 16:27; J 4:47; 17:15 al. (JEarwaker, ET 75, ’64, 316f so interprets the third ἵνα in 17:21). παρακαλεῖν request, exhort (EpArist 318; 321, Jos., Ant. 14, 168) Mt 14:36; Mk 5:18; 6:56; 7:32; 8:22; Lk 8:32; 1 Cor 1:10 al. αἰτεῖσθαι Col 1:9 (Just., D. 30, 2 αἰτοῦμεν). προσεύχεσθαι Mt 24:20; 26:41; Mk 14:35; Lk 22:46; 1 Cor 14:13 al. εὔχεσθαι pray (s. εὔχομαι 1 end) Hs 5, 2, 10. εὐχαριστεῖν Eph 1:16f. ἀξιοῦν demand, request (CIG 4892, 13 [III A.D.]; Jos., Ant. 14, 22) Hv 4, 1, 3. καταξιοῦν ISm 11:1; IPol 7:2.

δ. ‘summon, encourage, order’ (Epict, 4, 11, 29; 1 Esdr 8:19; EpArist 46) ἀπαγγέλλειν Mt 28:10. παραγγέλλειν (CIG 4957, 48 [68 A.D.] restored) Mk 6:8. διαμαρτύρεσθαι 1 Ti 5:21. ἐντέλλεσθαι (Jos., Ant. 7, 356) Mk 13:34; J 15:17. κηρύσσειν Mk 6:12. διαστέλλεσθαι Mt 16:20; Mk 5:43; 7:36; 9:9. ἐπιτιμᾶν warn Mt 16:20; 20:31; Mk 8:30; 10:48; Lk 18:39. ἐξορκίζειν Mt 26:63. ὁρκίζειν Hs 9, 10, 5. λέγειν order Mt 4:3; 20:21; Mk 3:9; 9:18; Lk 4:3; 10:40; Hv 2, 2, 6. γράφειν write (Jos., Ant. 11, 7; 127) Mk 9:12; 12:19; Lk 20:28. ἀποστέλλειν Ac 16:36.

ε. ‘cause, bring about’ πείθειν Mt 27:20. ποιεῖν J 11:37; Col 4:16; cp. Rv 3:9; 13:16. τιθέναι appoint J 15:16. ἀγγαρεύειν Mt 27:32; Mk 15:21.

ζ. ‘permit, grant’ ἀφιέναι Mk 11:16. On J 12:7 s. CBarrett, The Gospel According to St. John², ’78, 413–14. διδόναι 10:37; Rv 9:5.

η. συνευδοκεῖν Hs 5, 2, 8.

ⓑ after impers. expr.: ἀρκετόν (ἐστι) it is sufficient Mt 10:25. λυσιτελεῖ (εἰ … ἢ ἵνα) Lk 17:2. συμφέρει Mt 5:29f; 18:6; J 11:50. ἐμοὶ εἰς ἐλάχιστόν ἐστιν it is a matter of little consequence to me 1 Cor 4:3. ἔδει B 5:13. πολλὰ λείπει Hv 3, 1, 9.

ⓒ after nouns and adjs., esp. when they are parts of fixed expressions:

α. χρείαν ἔχειν J 2:25; 16:30; 1J 2:27. ἔστιν συνήθεια J 18:39. θέλημά ἐστιν Mt 18:14; J 6:40; 1 Cor 16:12b. βουλὴ ἐγένετο Ac 27:42. ἐντολή (cp. Polyb. 36, 17, 10 νόμος) J 15:12; 11:57; 13:34; Ac 17:15; 2J 6. δέησις Eph 6:19. ἐξουσία Ac 8:19. ἐμὸν βρῶμά ἐστιν J 4:34. τίς ἐστιν ὁ μισθός; ἵνα … 1 Cor 9:18.

β. οὐκ εἰμὶ ἱκανός Mt 8:8; Lk 7:6. οὐκ εἰμὶ ἄξιος J 1:27; cp. Hs 9, 28, 5. S. B-D-F §379; Rob. 996.

ⓓ after nouns mng. time: χρόνον διδόναι, ἵνα give time Rv 2:21. ἔρχεται ἡ ὥρα the time comes (Aesop, Fab. 242 H. ἡ ἡμέρα, ἵνα=the day on which) J 12:23; 13:1; 16:2, 32. S. B-D-F §382, 1; 393.

ⓔ ἵνα can also take the place of the explanatory inf. after a demonstrative (B-D-F §394; Rdm.² 192.—Wsd 13:9; Just., D. 14, 2 τοῦτο γάρ ἐστι τὸ σύμβολον τῶν ἀζύμων, ἵνα μὴ …) Mk 11:28. πόθεν μοι τοῦτο ἵνα ἔλθῃ (for τὸ ἐλθεῖν τὴν κτλ.) Lk 1:43 (cp. GJs 12:2). τοῦτο προσεύχομαι ἵνα Phil 1:9. cp. 1 Cor 9:18. This is a favorite usage in J: τοῦτό ἐστιν τὸ ἔργον τοῦ θεοῦ ἵνα πιστεύητε (for τὸ πιστεύειν ὑμᾶς) 6:29; cp. vs. 50. μείζονα ταύτης ἀγάπην οὐδεὶς ἔχει ἵνα … θῇ (for τοῦ θεῖναι) 15:13; cp. 3J 4.—J 6:39; 17:3; 1J 3:11, 23; 4:21; 5:3; 2J 6a. ἐν τούτῳ: ἐν τούτῳ ἐδοξάσθη ὁ πατήρ μου ἵνα … φέρητε (for ἐν τῷ φέρειν ὑμᾶς ἐδοξάσθη) J 15:8; cp. 1J 4:17.—S. also Hs 9, 28, 4, and ποταπὴν ἀγάπην ἵνα 1J 3:1.

ⓕ ἵνα is used elliptically ἀλλʼ ἵνα but this has happened that, where the verb to be supplied must be inferred fr. the context (Epict. 1, 12, 17): ἀλλʼ ἵνα μαρτυρήσῃ (sc. ἦλθεν) J 1:8. ἀλλʼ (ἐγένετο ἀπόκρυφον) ἵνα ἔλθῃ εἰς φανερόν but it was hidden that it might be revealed Mk 4:22 (but cp. CCadoux, JTS 42, ’41, 169 n. 3). ἀλλʼ (κρατεῖτέ με) ἵνα πληρωθῶσιν but you are holding me (prisoner), that 14:49. ἀλλʼ (ἐγένετο τυφλὸς) ἵνα φανερωθῇ J 9:3. ἀλλʼ (ἀποθνῄσκει) ἵνα … συναγάγῃ 11:52.—13:18; Hv 3, 8, 10 (cp. 1b above).

ⓖ ἵνα w. subjunctive as a periphrasis for the impv. (B-D-F §387, 3; Mlt. 178; 210f; 248; Rob. 994; Mlt-Turner 94f; FSlotty, D. Gebr. des Konj. u. Opt. in d. griech. Dialekten I 1915, 35; CCadoux, The Impv. Use of ἵνα in the NT: JTS 42, ’41, 165–73; in reply HMeecham, JTS 43, ’42, 179f, also ET 52, ’40/41, 437; AGeorge, JTS 45, ’44, 56–60. Goodsp., Probs. 57f.—Soph., Oed. Col. 155; Epict. 4, 1, 41, Enchir. 17; PTebt 408, 17 [3 A.D.]; BGU 1079, 20; PFay 112, 12; POxy 299, 5 ἵνʼ εἰδῇς ‘know’; PGM 4, 2135; Tob 8:12 BA; 2 Macc 1:9. ἵνα πρὶν τούτων ἴδητε τὴν ἀπώλειαν τῶν υἱῶν ‘before these events, you shall behold the destruction of your sons’ En 14:6. κύριε, ἵνα γινώσκῃ τὸ σὸν κράτος ὅτι ‘Lord, may you in your majesty know, that …’ TestAbr A 4 p. 80, 35f [Stone pp. 8 and 10]). ἵνα ἐπιθῇς τὰς χεῖρας αὐτῇ please lay your hands on her Mk 5:23. ἡ δὲ γυνὴ ἵνα φοβῆται τ. ἄνδρα the wife is to respect her husband Eph 5:33. Cp. Mt 20:33; Mk 10:51; 1 Cor 7:29; 16:16; 2 Cor 8:7; Gal 2:10. ἵνα ἀναπαήσονται let them rest Rv 14:13. W. θέλω: θέλω ἵνα δῷς Mk 6:25 (=δός Mt 14:8.).—On Mk 2:10 s. 1f above.

ⓗ ἵνα without a finite verb, which can be supplied fr. the context (Epict. 3, 23, 4 ἵνα ὡς ἄνθρωπος, i.e. ἐργάζῃ) ἵνα ἡμεῖς εἰς τὰ ἔθνη, αὐτοὶ δὲ εἰς τὴν περιτομήν (i.e. εὐαγγελιζώμεθα and εὐαγγελίζωνται) Gal 2:9. ἵνα κατὰ χάριν (γένηται) Ro 4:16. ἵνα ἄλλοις ἄνεσις (γένηται) 2 Cor 8:13. ἵνα (γένηται) καθὼς γέγραπται 1 Cor 1:31 (B-D-F §481; Rob. 1202f).

③ marker serving as substitute for the inf. of result, so that (‘ecbatic’ or consecutive use of ἵνα: B-D-F §391, 5; Mlt. 206–9; Rob. 997–99 and in SCase, Studies in Early Christianity [Porter-Bacon Festschr.] 1928, 51–57; EBlakeney, ET 53, ’41/42, 377f, indicating that the result is considered probable, but not actual. But this distinction is not always strictly observed. Cp. Epict. 1, 24, 3; 25, 15; 27, 8 al.; 2, 2, 16 οὕτω μωρὸς ἦν, ἵνα μὴ ἴδῃ; Vett. Val. 185, 31; 186, 17; 292, 20; Jos., Bell. 6, 107; Just., D. 112, 5; PLond III, 964, 13 p. 212 [II/III A.D.]. Many exx. in AJannaris, An Historical Greek Grammar 1897 §1758 and 1951) ἦν παρακεκαλυμμένον ἀπʼ αὐτῶν ἵνα μὴ αἴσθωνται αὐτό it was concealed from them, so that they might not comprehend it Lk 9:45. τίς ἥμαρτεν, ἵνα τυφλὸς γεννηθῇ; Who sinned, so that he was born blind? J 9:2. Cp. 2 Cor 1:17; Gal 5:17; 1 Th 5:4; 1J 1:9; Rv 9:20; 13:13; Hs 7:2; 9, 1, 10.—In many cases purpose and result cannot be clearly differentiated, and hence ἵνα is used for the result that follows according to the purpose of the subj. or of God. As in Semitic and Gr-Rom. thought, purpose and result are identical in declarations of the divine will (Ps.-Callisth. 2, 16, 10 the rule of the Persian king is being overthrown by the deity ἵνα Δαρεῖος … φυγὰς γενόμενος κτλ. Here ἵνα means both ‘in order that’ and ‘so that’): Lk 11:50; J 4:36; 12:40; 19:28; Ro 3:19; 5:20; 7:13; 8:17; 11:31f al. (ESutcliffe, Effect or Purpose, Biblica 35, ’54, 320–27). The formula ἵνα πληρωθῇ is so to be understood, since the fulfillment is acc. to God’s plan of salvation: Mt 1:22; 2:15; 4:14; 12:17; 21:4; 26:56; J 12:38; 17:12; 19:24, 36.—The ἵνα of Mk 4:12=Lk 8:10, so much in dispute, is prob. to be taken as final (w. AvVeldhuizen, NTS 8, 1925, 129–33; 10, 1927, 42–44; HWindisch, ZNW 26, 1927, 203–9; JGnilka, Die Verstockung Israels ’61, 45–48; B-D-F §369, 2 [here, and B-D-R p. 386f n. 2, the lit. on ‘causal’ ἵνα, which is allowed at least for Rv 22:14 and perh. 14:13, where P⁴⁷ has ὅτι; see 2g]. S. also FLaCava, Scuola Cattol. 65, ’37, 301–4; MBlack, An Aramaic Approach³, ’67, 211–16; ISluiter, Causal ἵνα, Sound Greek: Glotta 70, ’92, 39–53. On J 12:7 s. τηρέω 2a).

④ marker of retroactive emphasis, that. At times, contrary to regular usage, ἵνα is placed elsewhere than at the beginning of its clause, in order to emphasize the words that come before it (B-D-F §475, 1; cp. the position of ὅτι Gal 1:11): τὴν ἀγάπην ἵνα γνῶτε 2 Cor 2:4. εἰς τὸν ἐρχόμενον μετʼ αὐτὸν ἵνα πιστεύσωσιν Ac 19:4. τῷ ὑμετέρῳ ἐλέει ἵνα Ro 11:31. Cp. J 13:29; 1 Cor 7:29; Gal 2:10; Col 4:16b.—EStauffer, Ἵνα u. d. Problem d. teleol. Denkens b. Pls: StKr 102, 1930, 232–57; JGreenlee, ἵνα Substantive Clauses in the NT: Asbury Seminarian 2, ’47, 154–63; HRiesenfeld, Zu d. johanneischen ἵνα-Sätzen, StTh 19, ’65, 213–20; MBlack, An Aramaic Approach³, ’67, 76–81.—Frisk. M-M. EDNT. TW.