A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 409
illet of photographic paper under similar con-ditions of exposure to a standard light, and thelight to be measured. The combination of pure hydrogen and chlorine,or the decomposition of pure mercurous chloride,have been employed for the purpose of determin-ing the intensities of two lights by…
Electricity · Electrical engineering
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