Hepworth, Thomas Cradock, -1905 · London : Hazell, Watson, and Viney · leaf 163
TEUR PHOTOGRAPHERS. a sensation that all other forms of artificial illumination were looked upon as doomed. A Company was formed, and the inventor was somewhat prematurely rewarded by a sum of 50,000 roubles from the Academy of Science. But after a short time the excitement died a natural death,… … he provides a means by which the current, when one strip of graphite became spent, could bo switched off to a second and subsequently to a third strip. It would be tedious to quote the various lamps of this kind which have been invented and reinvented during the past twenty years. They are…
Slides (Photography) · Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
