Chapter VIII: PHYSICS.--On a Method of Making the Wave Length of Sodium
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Light the Actual and Practical Standard of Length.--By ALBERT
A. MICHELSON and EDWARD W. MORLEY.--Description of the
new standard of length and outlines of the practical method for
its determination.--The question of check determinations.
1 illustration. 10115
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Scientific American Supplement, No. 633, February 18, 1888Chapter VIII: PHYSICS.--On a Method of Making the Wave Length of Sodium
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