Harrison, Ross Granville, 1870–1959, American biologist and anatomist, b. Germantown, Pa., Ph.D. Johns Hopkins, 1894. He went to Yale as professor of comparative anatomy in 1907 and held various honorary positions there until his death. He is known for his work on nerve development in the embryo and on nerve regeneration as well as for his discovery of a method of tissue culture that permits study of isolated living cells in a controlled environment.
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