Agricultural Implements and Machines in the Collection of the National Museum of History and Technology / Smithsonian Studies in History and Technology, No. 17

by John T. Schlebecker

Figure 34.—Roberts-Mackensen bee insemination instrument, 1944. (Catalog No. 414.)

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Index to the Catalog

(All numbers refer to catalog entries, not to pages)

A. G. Woodson Co., [412],

A & P Co., donor, [72]

Abbot, Charles G., donor, [27]

Agriculture, Department of, donor, [45], [46], [48]-[53], [55], [99], [366], [380], [381], [385]

Allis, T. W., [298]