File:The American annual of photography (1912) (14579101498).jpg

Identifier: americanannualof1912newy (find matches)
Title: The American annual of photography
Year: 1912 (1910s)
Authors: Nathan R. Graves Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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ld by Eugene Dietzgen (New York), known as ^Grif-fon Detail Paper. Many of the linen writing papers areof beautiful quality also, and each worker will undoubtedlybe able to find papers that will give him more satisfactionthan the commercial stocks. In choosing a paper, moistenthe finger slightly and touch the paper. If the moisture isabsorbed rapidly the paper may need a coat of size. If, onthe contrary, the moisture remains on the surface for severalseconds sensitizing may take place without any preliminaries. SIZING. If clear high-lights are desired some papers may needsizing (none of those mentioned above will require any),but interesting results may be got by coating a soft paper,allowing the solution to sink into the pores. If multiple print-ing is to be used the paper should be sized before each of thesecondary sensitizings. To size, make up a medium thin pasteof laundry starch (boiled) and, pinning the paper on a flatboard, apply the paste with a damp sponge, rubbing it well 46
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ROSE. NATHAN R. GRAVES. into the paper. Be liberal with the paste, but be sure thatit is free from lumps. FORMULA. The formulae for coating are based on those given by MissKatherine Stanbery, in Photo Miniature No. 96, but havebeen varied a trifle, as it was found difficult to get a full scaleof tones and rich blacks in working by her method. Thevariation is very slight, however, and the writer takes thisopportunity of thanking Miss Stanbery for placing in his 47 hands one of the most valuable photographic processes that hehas ever encountered.Stock solutions: (I) Oxalic acid i6 gr. Ferric oxalate 240 gr. Distilled water—hot 16 dr. Oxalic acid 16 gr. (II) Ferric oxalate 240 gr. Potassium chlorate 4 gr- Distilled water—hot 16 dr. (Ill) Potassium Chloroplatinite 219 gr. (=^ oz.) Distilled water 19 dr. Sensitizing solutions: (i) For very soft prints— I 22 mm. Ill 28 mm. (2) I 18 mm. II 4 mm. Ill 28 mm. (3) About same degree of contrast as a silver print. I 14 mm. II : 8 mm. Ill 28

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