Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (61297 total)

Agricultural engineering student using an engineer's transit, 1957
Agricultural education lecturer speaking to a class of adult men, 1966.
Agricultural education lecturer speaking to a class of adult men, 1966.
Agricultural chemistry laboratory, 1897
Agricultural chemistry laboratory, 1897
Agricultural by-products, 1937
Agricultural by-products, 1937
Agricultural by-products lab, 1938
Agricultural by-products lab, 1938
Agricultural by-products lab, 1938
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