1.

図書
図書
1. Wavelength tables : with intensities in arc, spark, or discharge tube of more than 100,000 spectrum lines, most strongly emitted by the atomic elements under normal conditions of excitation between 10,000 A. and 2000 A., arranged in order of decteasing wavelengths
measured and comp. under the direction of George R. Harrison
出版情報: Cambridge, Mass. : Massachusetts Inst. of Technology. Technology Press, 1939.
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2.

図書
図書
2. The glass giant of Palomar
by David O. Woodbury ; with 50 drawings by the author and sketches by Russell W. Porter
出版情報: New York : Dodd, Mead, 1939
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