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Document Type

Research

Abstract

Physical development of photographic plates is not as efficient as chemical development. While it produces very fine grain negatives, longer exposure than normal is required and plates must be developed an hour to produce satisfactory printing densities. pH of the developer is important.

Publication Date

1937

Journal Title

Proceedings of the Iowa Academy of Science

Volume

44

Issue

1

First Page

149

Last Page

149

Copyright

© Copyright 1937 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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