How to make pictures : easy lessons for the amateur photographer (1882)
Price, Henry Clay · New York : Scovill Manufacturing Co. · leaf 61
CHAPTER yi. VARNISHING THE NEGATIVE. We left the negative in tlie rack drying, and it must be thoroughly done before tlie next process is attempted. My plan is to leave the negative in the rack over night to dry. It follows next in order that a coating of varnish (prepared and sold for this pur-… … preserve and protect it. So warm the plate slightly ; do not use much heat, only just sufficient to give the plate an indication of warmth. Grasp the plate by the corner with the left hand in the manner shown in figure 21. Have the film side up. With the right hand remove the cork from the bottle…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
