New Process for Toning Blue Prints

The intense blue color of the ordinary blue print gives unnatural effects in prints from photographic negatives; also in architectural drawings where views and elevations of buildings are reproduced. The following method of toning such blue prints has been found to be easy of application and to give...

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Bibliographic Details
Published in:Scientific American Vol. LXV.; no. No. 13.; p. 197
Main Author: W. P. JENNEY, E. M., PH.D.
Format: Magazine Article
Language:English
Published: New York American Periodicals Series II 26-09-1891
Online Access:Get full text
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Summary:The intense blue color of the ordinary blue print gives unnatural effects in prints from photographic negatives; also in architectural drawings where views and elevations of buildings are reproduced. The following method of toning such blue prints has been found to be easy of application and to give tones varying from a brilliant blue through violet blue to neutral tint and warm shades of gray...
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ISSN:0036-8733
1946-7087