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Gelatin in phpotography. Vol. I. By S. E. Sheppard, D.Sc. Monographs on the Theory of PHtography from the Research Laboratory of the Eastman Kodak Company. New York: D. Van Nostrand Company, 1923. Price $2.50

✍ Scribed by Greenwood, H. W.

Publisher
Wiley (John Wiley & Sons)
Year
1924
Weight
279 KB
Volume
43
Category
Article
ISSN
0368-4075

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✦ Synopsis

dissolvcd oxygen. A scctioii is dcvotcd to tlic corrosion of coppcr alloys and condcnscr tiilm, and it is uscful thus to haw, in tabloid form, a review of tlic comprcliensivc rcscnrches of Dr. Bcngough and his collnborntors, as sccn from Mr. E v n d s stand-In dcaling with tlie prevaition of corrosioii re.

fcrenco is made t o the method of softening watcr by filtration through permutitc, wliercby dissolved calcium ancl magnesium salts arc rcplnccd by tho corresponding sodium salts. As tlicsc have no SCR~Cforming propertics and nrc not subjcct to hydrolysis, Jlr. Erans concludes that they arc probably lcss tlangcrous from thc corrosion poiiit of vicw (p. 169).

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The silver bromide grain of photographic emulsions. By A. P. H. TRivelli and S. E. Sheppard. Monographs on the Theory of Photography from the Research Laboratory of the Eastman Kodak Co. Edited by C. E. K. Mees and M. S. Schramon. Pp. 143. (New York: D. Van Nostrand Co. 1921.)
✍ Higson, G. I. πŸ“‚ Article πŸ“… 1922 πŸ› Wiley (John Wiley & Sons) βš– 275 KB

ISclrrtrrtZ Anioltl c o i d Co. 1!)2t.) P r i c e 15s. net. 9'110 author is lo I10 ctingrntul:itccl on hnring writtcn :L Imok ~h i c h fir~pplics I I I : I I I ~ ol tlio clclioiciicim of tho sL:ir~tl:~rd tcxt-books 0 1 1 I~'oro~~sic 3lcclicino :ind 'l'nsicology. Tho t.itlc of his book ' I Forensic