![Accuracy! Accurate to 1 part in 10,000,000, the apparatus shown in this photograph represents a simple and readily usable arrangement of the interferometer for standardizing indicators, extensometers, etc., [...] terms of light waves. The equipment was designed by Dr. Wilmer [...] Douder [i.e. Dr. W](https://thumbs.arkivism.com/loc-2016888064.jpg)
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Accuracy! Accurate to 1 part in 10,000,000, the apparatus shown in this photograph represents a simple and readily usable arrangement of the interferometer for standardizing indicators, extensometers, etc., [...] terms of light waves. The equipment was designed by Dr. Wilmer [...] Douder [i.e. Dr. W
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Credit lineAccuracy! Accurate to 1 part in 10,000,000, the apparatus shown in this photograph represents a simple and readily usable arrangement of the interferometer for standardizing indicators, extensometers,. 1926. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.
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Washington, D.C., June 10, The House of Representatives late yesterday voted 214 to 122 to seat Alphonse Roy (above) Democrat, as a representative of the first district of New Hampshire. At the same time Rep. Arthur B. Jenks, Republican, who has represented the District for the last year and a half,
Washington, D.C. Norman J. Nelson, principal of Woodrow Wilson High School
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Roderick Tait