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Original Articles

The Daguerreotype and Development of the Latent Image: “Une Analogie Remarquable”

Pages 165-167 | Received 20 Dec 1995, Published online: 21 Jul 2016

References

  • Wood, R. D., Latent developments from Gallic Acid, 1839., J. Photogr. Sci., 28, 36-42 (1980).
  • Wood, R. D., .Gallic Acid and Talbot.s Calotype Patent: Part II of J. B. Reade, F.R.S., and the Early History of Photography., Annals of Science, 27, 47-83 (1971).
  • Wood, R. D., The daguerreotype secret revealed: an annotated bibliography of Arago.s lecture of 19 August 1839., [to be published],
  • Academie des Sciences. Stances du 19 Aout. Exposition du Daguerrotype ... [reported] par Dr. Al.DonnC, Journal des Debats, 20 Aout 1839, 1-3.
  • Anonymous report .Precede de M. Daguerre., Le Constitutionnel (Paris), Mardi 20 Aout 1839, 2.
  • "Isid. B", .Renseignemens sur l.execution des tableaux daguer- rotypes, Le Constitutionnel, 21 Aout 1839, 1-2.
  • Nouvelle Biographic Generate, 7, 374-5 (1853); Dictionnaire de Biographie Frangais, 7, 284 (1954).
  • The original French text from reference 6 is: “aprté 4 d 10 minutes, selon la lueur du jour, selon la saison, et l’intensitl; de la lumiére, l’image des objets immobiles dont la lunette regoit la lumiCre, se trouve fidClement imprimCe sur la plaque, bien que cette image soit encore invisible et seulement latente. On recouvre de nouveau la plaque, afin que de nouveaux objets ne viennent pas meler leur image au tableau d’ realist. Mais cette image, qui n.est encore pour d.un precede dont usent le ecoliers et quelques amoureux pour faire parvenir, sans risque d.indiscretion, des lettres mysterieuses ou ne parait aucune ecriture. La secret de ces lettres toutes blanches est tres-simple: il consiste h humecter sa plume, en guise d.encrier, dans la pulpe et le sue du bulbe de quelque plante alliacde. On ne voit absolument rien d.6crit; et il en est de meme de l’image dessin6e sur la couche d.iode de la plaque m6tallique. Mais aussitot que la lettre a 6t6 exposee au feu, on voit l’dcriture se dessiner trdsdisiblement, les caractcres alors sont tout aussi visibles que si de l’encre a la noix de galle les eut form6s. Voila justement comment apparaissent les images Daguerre dds que les vapeurs mercurielles les ont touchees. Il existe entre ces deux resultats une analogie remarquable.”
  • Nierenstein, M., The Natural Organic Tannins, London: Churchill 1934; Nierenstein, M., Incubabula of Tannin Chemistry, London: Edward Arnold 1932; Nierenstein, M., .The early history of the first chemical reagent. [nutgall reaction with iron salts], Isis, 16, 439-16 (1931).
  • More recent work than Nierenstein on the chemistry of Gallotannins has been done by researchers at the University of Sheffield published by R. Armitage, E. Haslam et at., in a series of fifteen papers in Journal of the Chemical Society between 1961 and 1967,and Haslam, E., Chemistry of Vegetable Tannins, London: Academic Press (1966).
  • Garfield, E., .The “obliteration phenomenon" in Science, and the advantage of being obliterated., Current Contents (Institute for Scientific Information), No. 51/52, 5-7 (22 December 1975).
  • Exzerte aus Philons Mechanik, B. VII und VIII, vulgo ftinftes Buch. Griechisch und Deutsche von H. Diels und E. Schramm., Abhandlungen der Preussischen [Deutsche] Akademie der Wissen- schaften zu Berlin 1919, Philosophisch-historisch Klasse No, 12, p. 79 (Philo.s Book VIII (on city sieges), iv, 77). Earliest standard publication in Greek and Latin of .Philonis de Telorum Construc- tione liber V. edited by Melchisedech Thevenot, Veterum Malhe- maticorum Opera, Paris (1693), pp. 79-104 (on use of nut galls for secret writing p. 102). [British Library 59 FI].
  • Pliny the elder, Natural History, London: Loeb Classical Library, Heineman (1952), Book 16, xxvi, 112-3. Original Latin and translation into English by H. Rackham.
  • Mitchell, C. A. and Hep worth, T. C., Inks: their composition and manufacture, London: Griffin (1937).
  • British Records Association Technical Section Bulletin, No. 16, 42-3 (1946).
  • Allgemeine Deutsche Biographie, 18, 714 (1883). H. F. Link (1767- 1851) was at that time Professor of Botany and Chemistry at Rostock. At the same period he was writing a prize essay on the chemical properties of light published in St Petersburg in 1808. He is indeed an outstanding example of how botanists in particular had in the late 18th and early 19th centuries a professional familiarity with the characteristics of the photosensitivity of silver salts.
  • Link, H. F., Grundlehren der Anatomie und Physiologic der Pflanzen, Gottingen (1807), pp. 80-81. Lillie, R. D., .A Histochemical Reaction from 1807: Iron Tannin., Journal of Histochemistry and Cytochemistry, 20, 295-6 (1972).
  • Chaplin, A. )., .Tannic acid in Histology: an Historical perspective., Stain Technology, 60, 219-231 (1985).
  • Simionescu, N. and Simionescu, M., .Galloylglucoses of low molecular weight as mordant in electron microscopy., loumal of Cell Biology, 70, 608-633 (1976).

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