De Vries, Hugo. SPECIES AND VARIETIES. Their Origin by Mutation. Lectures delivered at the University of California by Hugo De Vries, Professor of Botany in the University of Amsterdam. Edited by Daniel Trembly MacDougal, Assistant Director of the New York Botanical Garden. First Edition; pp. xviii, 848(last blank), [vi](adv.), [2](blank); index; original cloth, with gilt title-label on spine, top edge gilt; a nice copy; scarce. Chicago; The Open Court Publishing Company, London, Kegan Paul, Trench, Trubner & Co., Ltd; 1905. #49439

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