Leipzig: Veit, 1901.
1st Edition. Hardcover. Near Fine. Item #001884
1901-03. 2 Vols., large 8vo (240x164 mm). xii, 648; xiv, 752 pp., many text illustr., 12 chromolithographed plates. Title with stamp and signature of former owner, vol. 2 somewhat foxed. Contemporary half calfs with gilt spines, slightly rubbed. Vol. 1 with red colored edges. Joint of vol. 2 front cover repaired, inner joint of back cover loosened, flyleaves renewed. Internally sound and clean. A beautiful set. ----
Dibner 36; Sparrow 194; Garrison-Morton 240; Horblit 73b; Norman 2169; Heirs of Hippocrates 1094. - FIRST EDITION. De Vries began an intensive study of Oenothera lamarckiana, a species of evening primrose, in 1886, after noticing a number of variants of the species. During his studies new forms appeared, and de Vries was able to formulate his Laws of Mutation, suggesting that new species developed through a series of small, random, and not necessarily useful changes ("mutations" or "saltations"). His theory buttressed Darwin's evolutionism and explained the progress of changing characteristics within species. "Although his Oe. lamarckiana mutants were later discredited (the plant was shown to be a permanent hybrid), the principle of mutation, or sudden change in species, remains a cornerstone of evolution theory" (Norman).
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