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| Date: | 1909 |
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| Description: | Wilbur Wright, in the bowler hat, preparing the Flyer for the conclusion of the test required to win a U.S. Army contract. The 1908 demonstration had been ... |
| Date: | 1890 |
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| Description: | Apparatus for limnological research conducted at Trout Lake, Wisconsin and elsewhere. |
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| Description: | Dr. Edward Birge, March, and Professor Chancey Juday with the first mud thermometer on the ice. |
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| Description: | A woman demonstrates the use of a homemade bee catcher on a tree in her yard. |
| Date: | 12 24 1894 |
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| Description: | Diploma of honorable mention presented to Stephen M. Babcock by the Board of Lady Managers of the Columbian Exposition. The document honors Babcock's inven... |
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