6 December 2004
HELMHOLTZ, Hermann von (1821-1894). Beschreibung eines Augen-Spiegels zur Untersuchung der Netzhaut im lebenden Auge. Berlin: A. Fröstner'sche Verlagsbuchhandlung (P. Jeanrenaud), 1852.
8o (204 x 131 mm). 1 engraved plate by Afinger after drawings by Helmholtz. 19th-century marbled boards (light wear to spine and edges). Provenance: Jacob Betrand (ownership inscription dated 1855 on front free endpaper and title).
FIRST EDITION of Helmholtz's announcement of his invention of the ophthalmoscope. This was a by-product of Helmholtz's attempt to demonstrate to his physiology students that when the human eye is made to glow with reflected light, the light emitted from the pupil follows the same course it took in entering. Realizing that if the light could be brought to a focus the details of the retina would be made visible, he invented a device to accomplish this objective. The ophthalmoscope greatly improved the ability of ophthalmologists to diagnose eye disease and revolutionized visual science. Garrison-Morton 5866; Grolier Medicine 65; Heirs of Hippocrates 1886; Norman 1041; Waller 4294.
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Specialist Joy McCall answers key questions for collectors of the glassmaker’s exquisite pieces. Illustrated with lots offered in the Lalique sale on 15 May
Offered in May, a 1916 canvas that was included in every major survey of Malevich’s Suprematist works during his lifetime, and which revolutionised modern art