The production of sensitizing specks on
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S.E. Sheppard; A.P.H. Trivelli; E.P. Wightman
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Article
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1927
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Elsevier Science
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English
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BY TAKING photomicrographs of the same silver halide grains of a photographic emulsion before and after treatment with allylthiourea sensitizer, and again after treatment with alkali, it has been shown that the sensitizer does not react with the silver halide uniformly over its surface but in discre