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Letter from Blankenship & Morgan to George S. Anderson requesting to obtain renewal on license for next season, dated January 29, 1897.
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Letter from Frank Pierce to H. T. Allen sent with fifty copies of an analysis of the Iron Spring, dated March 10, 1908.
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Letter from Jesse E. Wilson to H. T. Allen sent with fifty copies of an analysis of the Soda Spring, dated April 15, 1908.
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Professor and Students working with science equipment
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Report submitted by Dr. Herman Schlundt on radioactivity of some cold waters in Yellowstone National Park, dated January 11, 1908.
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Science Class
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Science students working with a measuring wheel
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Student heating up a glass pipette
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Student working with a glass pipette
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Student working with glass dropper vials in science class
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Student working with large microscope in science class
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Students working together in science class
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[YELL203479-D332] Memorandum regarding billing for stationery, 1800s.
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[YELL203479-D395] Order from John W. Noble regarding permission for Professor F. E. Ives to take color photographs, dated August 4, 1892.
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[YELL203479-D472] Proceedings of board convened to inspect the structure built by F. J. Shaffer and the results of the inspection, dated December 4, 1894.
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[YELL203479-D684] Letter from Jean M. McKee to Secretary of the Interior requesting information about trip through Park, dated March 9, 1898.

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