This collection consists chiefly of photographs of landscapes and plants taken by Rock on collecting trips to China and Tibet, 1922-1929. The Rock Specimen Catalog, located in the Botany Library of the National Museum of Natural History, includes a list of plants collected, 1921-1924, and identification of plants taken, 1928-1929. Also in the Botany Department are manuscript maps prepared by Rock showing his itinerary, 1925-1927.
Smithsonian Institution Archives
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