๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Use of Tungsten Arc Lamps for Photomicrography

โœ Scribed by JELLEY, EDWIN E.


Book ID
109495175
Publisher
Nature Publishing Group
Year
1931
Tongue
English
Weight
285 KB
Volume
127
Category
Article
ISSN
0028-0836

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Work has been in progress at the Bureau for several years on a reference standard lamp for testing colorfastness to light of textiles, paper, and similar materials, and on means for calibrating, in terms of this standard, the lamps used in laboratories throughout the country." The purpose is to prov