Preparation and properties of pure iron
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Henry S. Rawdon; Frederick Sillers Jr.
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Article
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1923
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Elsevier Science
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English
β 104 KB
Feb., I923.] U.S. BUREAU OF STANDARD.q NOTES. ~57 electrical sensitivity in the extreme ultra-violet, but that the reaction gradually decreases with decrease in wave-length. Several spectral response curves are given of Case's barium and strontium photoelectric cells, which have maxima at o.4z~ and