How to make pictures : easy lessons for the amateur photographer (1882)
Price, Henry Clay · New York : Scovill Manufacturing Co. · leaf 51
41 DEYELOPMENT OF THE PLATE. from a holder, which latter please grasp with the left hand as shown in figure 15, and holding the right hand to within an inch of the opened end, tilt for- ward or raise the other end of the holder so that the gelatine plates will slide … the holder is so inclined that the other plate will slide back into its former place. The holder can now be set aside. Lower the gelatine plate into a vulcanite tray, and Tcee^ the sensitive side upjpermost. Look to this ! Put the slide (7 back into the holder. From a pitcher or glass pour clean…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
