Joel I. Cohen | joelcohen.org | "A Life Restored"

Philatelic Science	Agricultural Science	Commemorating Courageous Lives of Science	Education Research	Genetics, Breeding & Regulation	Genetic Resources, Conservation, & Biodiversity
		Commemorating the life and work of Rachel Carson Carson Commemorative Directory

		A Life Interrupted: The Story of Botanist Calvin Sperling from Minnesota to Biodiversity Exploring the nature of science through courage and purpose: a case study of Charles Darwin’s way of knowing