Hepworth, Thomas Cradock, -1905 · London : Hazell, Watson, and Viney · leaf 76
64 EVENING WORK FOR so that those interested in the matter may be able to see what has already been done (fig. 22). It will be noticed that Dr. Fergusson's apparatus is supported by an ordinary chemical retort-stand, a contrivance which ought to be pos- sessed by every photographer, so useful is it… … Fig. 22. contained liquid, which was found I fancy that glasses like enlarged to be six inches, which are made to cover clock and watch glasses. faces, would be the better article to get for this purpose. In the case before us the containing vessel is actually deeper than would be required for most…
Slides (Photography) · Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
