Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art (1887)
Wilson, Edward L. (Edward Livingston), 1838-1903 · New York : E.L. Wilson · leaf 277
CONTRIVANCES. reap the benefit of seeing how easy it is to accomplish the mysteries of the dark-room. To set it at work, press the India-rubber pear in, taking care that the thumb covers the small hole e; the air contained in the pear will rush through the small hole in cork b, and press upon the… … a, glass bottle with tubular ueck. b, cork perforated by two holes, c, cork perforated by one hole, d, India- rubber hollow pear, e, small hole punched in India-rubber pear. /, a curved glass tube. To fill the apparatus, draw out the glass tube, and put down a long, thin tube, with a glass funnel…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
