Howard Scott Gentry was an American botanist who is especially known for his expertise on the agave plant. Over the course of his work, Gentry introduced 15,000 plants into the United States for study, with his most notable contributions consisting of the ...
Molly Stothert-... - 2019-02-15 11:27
Contains materials related to A.E. Douglass' astronomical and tree-ring research, and administration, at the Harvard College Observatory, Lowell Observatories, Steward Observatory, Laboratory of Tree-Ring Research, and University of Arizona. ...
castanoe - 2021-06-09 15:19