‎VRIES (Hugo de)‎
‎Die Mutationstheorie. Versuche und beobachtungen über die entstehung von arten im pflanzenreich -- EDITION ORIGINALE -- 2 VOLUMES (COMPLETE SET)‎

‎Leipzig, Von Veit, 1901/1903, 2 VOLUMES grand in 8 (24,5 cm x 18 cm) reliés en demi-toile verte à coins, dos ornés de filets dorés (reliures de l'époque), T.1 : 12pp., 648pp., 8 planches en couleurs, T.2 : 14pp., 752pp., 4 planches en couleurs‎

Reference : 5237

‎---- EDITION ORIGINALE ---- DIBNER N° 36 : "De Vries contributed the theory that in individuals, hereditary characters may combine or vary independently of one another. Thus, even though independent variations appear in individuals as Darwin's theory demanded, species in nature remain constant. Studying the evening primrose, he recognized the sudden appearance of a new species. A true and measurable mutation was observed" ---- HORBLIT 73b : "De Vries discovered, revealed, and proved the importance of Mendel's work. Advanced the theory of "mutations" or discontinuous change in the character of species" ---- GARRISON N° 240 - Norman N° 2169 - Heirs of Hippocrates N° 2111 - Honeyman N° 3082 - DSB XIV**5237/A6AR‎