1. Frases
  2. Autores
  3. Hugo de Vries

Frases de Hugo de Vries

Hugo Marie de Vries ForMemRS[1]​ fue un botánico neerlandés y uno de los primeros genetistas. Nacido en Haarlem y fallecido en Lunteren, es uno de los tres biólogos, junto a Carl Correns y Erich von Tschermak que en 1900 redescubrieron las leyes fundamentales de la genética publicadas primero por Gregor Mendel en 1866. Wikipedia  

✵ 16. febrero 1848 – 21. mayo 1935
Hugo de Vries Foto
Hugo de Vries: 2 citas0 Me gusta

Hugo de Vries: Frases en inglés

“Physiologic facts concerning the origin of species in nature were unknown in the time of Darwin... The experience of the breeders was quite inadequate to the use which Darwin made of it. It was neither scientific, nor critically accurate. Laws of variation were barely conjectured; the different types of variability were only imperfectly distinguished. The breeders' conception was fairly sufficient for practical purposes, but science needed a clear understanding of the factors in the general process of variation. Repeatedly Darwin tried to formulate these causes, but the evidence available did not meet his requirements.
Quetelet's law of variation had not yet been published. Mendel's claim of hereditary units for the explanation of certain laws of hybrids discovered by him, was not yet made. The clear distinction between spontaneous and sudden changes, as compared with the ever-present fluctuating variations, is only of late coming into recognition by agriculturists. Innumerable minor points which go to elucidate the breeders' experience, and with which we are now quite familiar, were unknown in Darwin's time. No wonder that he made mistakes, and laid stress on modes of descent, which have since been proved to be of minor importance or even of doubtful validity.”

Help us translate this quote

Hugo De Vries

Species and Varieties: Their Origin by Mutation (1904), The Open Court Publishing Company, Chicago, p. 5-6

“To put it in the terms chosen lately by Mr. Arthur Harris in a friendly criticism of my views: "Natural selection may explain the survival of the fittest, but it cannot explain the arrival of the fittest."”

Help us translate this quote

Hugo De Vries

Concluding sentence of his work Species and Varieties: Their Origin by Mutation (1904), The Open Court Publishing Company, Chicago, p. 826.

Autores similares

Peter Hamilton Raven Foto
Peter Hamilton Raven5
botánico estadounidense None
George Washington Carver Foto
George Washington Carver2
botánico estadounidense None
José Pablo Feinmann Foto
José Pablo Feinmann11
Filosofo y escritor argentino None
Anton Pannekoek Foto
Anton Pannekoek7
astrónomo y teórico marxista holandés None
Walter Riso Foto
Walter Riso179
None
Julio Ramón Ribeyro Foto
Julio Ramón Ribeyro4
escritor y dramaturgo peruano None
Johan Cruyff Foto
Johan Cruyff31
ex futbolista neerlandés None
Richard Winters Foto
Richard Winters1
militar estadounidense None
Beatrix Potter Foto
Beatrix Potter2
escritora, ilustradora y naturalista británica None
Lawrence M. Krauss Foto
Lawrence M. Krauss3
físico estadounidense None