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DDT Lecture at the 1946 Indiana State Fair

By J.C. Allen and Son


Glen Lehker is seen here lecturing on the use of DDT to control insects in a farm exhibit in the Purdue Building on Sept. 1, 1946

Topics: Indiana State Fair; Pest control; Purdue University; Exhibitions; Exhibition facilities; Farms; Public speaking; Audiences
Year: 1940
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