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Word: spectograph (lookup in dictionary) (lookup stats)
Dates: during 1920-1929
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Usage:

...Douglas, Instructor in Geology, to purchase a quartz spectograph for determining the minor constituents of minerals, ores, and rocks, and the composition of minute grains too small to be analyzed in other ways...

Author: NO WRITER ATTRIBUTED | Title: SECOND SERIES OF MILTON FUND AWARDS FOR RESEARCH ANNOUNCED BY UNIVERSITY | 9/26/1925 | See Source »

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