File:The American annual of photography (1922) (14595125717).jpg

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English:

Identifier: americanannualof36newy (find matches)
Title: The American annual of photography
Year: 1922 (1920s)
Authors:
Subjects: Photography
Publisher: New York : Tennant and Ward
Contributing Library: Harold B. Lee Library
Digitizing Sponsor: Brigham Young University

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About This Book: Catalog Entry
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Text Appearing Before Image:
dol, as it was found that the action of the developer on the Amidol treated plates had been so greatly accelerated that unless the emulsion was very fresh a considerable chemical fog was produced even when the plate was developed in darkness. Dr. Lueppo-Cramers statement that the presence of sulphite in the Amidol solution destroyed the latters peculiar property of desensitizing was verified. In some cases the phenosafranine has a tendency of slightly staining the gelatinea reddish color, especially if it is used as a preliminary bath. While the stain is not objectionable, it can be easily removed by placing the plate after fixing and washing a short time for a few minutes in a strong solution of alum containing a small quantity of pure hydrochloric acid and washing again. The presence of the phenosafranine in the developer does not cause any deterioration in either fresh or used developer even after some months. In other words, it is perfectly safe to add the dye to the stock developer. qb
Text Appearing After Image:
PONTIFICAL HIGH MASS. JULIEN J. PROSKAUER. 99

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Flickr tags
InfoField
  • bookid:americanannualof36newy
  • bookyear:1922
  • bookdecade:1920
  • bookcentury:1900
  • booksubject:Photography
  • bookpublisher:New_York___Tennant_and_Ward
  • bookcontributor:Harold_B__Lee_Library
  • booksponsor:Brigham_Young_University
  • bookleafnumber:142
  • bookcollection:americana
Flickr posted date
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30 July 2014



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