Word: spectograph
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Dates: during 1930-1939
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...description of apparatus seen in foreign schools. At the conclusion of this, an opportunity will be furnished for the members of the association to inspect some of the interesting features of the new research Laboratory, such as the 100,000 volt storage battery, Professor Lyman's ultra-violet vacuum spectograph, Professor Duane's X-ray spectograph, and Professor Bridgman's high pressure apparatus...
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