Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 272
iodine is placed, which is covered withthe ring, J, upon which is stretched a pieceof fine gauze, by which the particles ofiodine are prevented from rising and stain-ing the plate, while the vapor, of course,passes freely through it. e is the boardwith the plate attached, which rests on thefour… … 33 cover c. k, tapering sides all round, form-ing a funnel-shaped box within. To prepare the plate :—The cover, c,being taken out, the cup, d, is charged witha sufficient quantity of iodine, broken intosmall pieces, and covered with the gauze,j. The board, e, is now, with the plateattached, placed,…
Photography · Art and photography
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