Skip to main content Skip to search results

Showing Collections: 1 - 2 of 2

Crawford H. Greenewalt papers

 Collection — Multiple Containers
Identifier: ANSP-Coll-0997
Overview Crawford Hallock Greenewalt (1902-1993) was a chemical engineer and the President of the DuPont Company from 1948 to 1962. He had a passion for the natural sciences, and combined his love of ornithology with photography. He was especially known for his high speed photographs of hummingbirds. His ornithological interests included bird songs, the radiance of hummingbird feathers and the evolution of shapes and sizes of birds in relation to their flight abilities. The Crawford H. Greenewalt...
Dates: 1951 - 1993

Eleanor Slifer Papers

 Collection — Multiple Containers
Identifier: ANSP-Coll-1006
Overview Dr. Eleanor Slifer (1900-1986) was a faculty member in the Department of Zoology, University of Iowa and a member of the Entomology Department at the Academy of Natural Sciences of Philadelphia. Dr. Slifer’s groundbreaking work with insect chemoreceptors lead to over 100 published papers in professional journals. This collection dates from 1928 to 1980 and contains handwritten notes, illustrations, manuscripts and galley proofs relating to a number of Dr. Slifer's published papers....
Dates: 1928-1980