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Green & Gardiner
No. 10. Lacerta Agilis
[British Batrachians and Reptiles]
1896 (ca)
Cabinet card, sciagraph
Bonhams - New York
History of Science, 22 Oct 2014, Lot: 235, X-Ray Photographs
LL/101934
An excellent group of remarkably detailed x-ray photographs, or sciagraphs, executed using Röntgen's revolutionary discovery of the x-ray. The photos depict what are surely the first x-ray views of two lizards and one frog. "Messrs. James Green and J.H. Gardiner exhibited a series of sciagraphs of British Batrachians and Reptiles in which the details of the skeleton were very sharply defined, and its relation to the external outline well shown. These sciagraphs ... were taken with a Crookes's tube of the ordinary focus pattern actuated by a powerful induction-coil giving 8-in. sparks and the prints in every case were made from untouched negatives" (Proceedings of the Linnean Society of London, Session 1896-97, November 5th, 1896, p 4).
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