Early Work in Photography : a Text-Book for Beginners
The book Early Work in Photography : a Text-Book for Beginners was written by author Ward, H. Snowden (Henry Snowden), 1865-1911 Here you can read free online of Early Work in Photography : a Text-Book for Beginners book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Early Work in Photography : a Text-Book for Beginners a good or bad book?
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. . . 720 „ Potassium bromide . . . . 8 „ Water, to . . . . . . 30 ounces The sodium sulphite should be dissolved first; the other ingredients may then be added and dissolved in a thin glass flask by heat. B. — Potassium carbonate .. .. 480 grains Water, to . . . . . . 10 ounces For normal exposures, use three parts of A to one of B. Acid Fixing Bath. This bath combines the following advantages; li remains clear after frequent use, does not discolour the negatives, forms no precipitate upon the...m, and hardens the gelatine to such a degree, that the negatives can be washed in warm water, provided they have been left in the bath a sufficient time. Prepare two solutions. ■^•—Hyposulphite of soda .. .. 4 ounces £.— Water Sulphuric acid Sulphite of Sodium crystSs Chrome Alum After the ingredients are dissolved pour B solution into A During the winter one-half the quantity of A is SUFFICIENT. The plate should be allowed to remain in the bath five to ten minutes after the bromide of silver appears to be dis- 15 5 ounces 30 minims 240 grains 180 ..
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