"Weismann" Quotes from Famous Books
 ... the issue between the Lamarckians and Weismannists—whether changes acquired by the parent are inherited by the young—recent experiments again suggest something of a compromise. Weismann says that the body of the parent is but the case containing the germ-plasm, so that all modifications of the living parent body perish with it, and do not affect the germ, which builds the next generation. Certainly, when we reflect that the 70,000 ...
— The Story of Evolution • Joseph McCabe
... acquired nature in man. The examination of original tendencies has been quite properly connected with the study of inheritance. For the history of research in this field, the student is referred to treatises upon genetics and evolution and to the works of Lamarck, Darwin, DeVries, Weismann, and Mendel. Recent discoveries in regard to the mechanism of biological inheritance have led to the organization of a new applied science, "eugenics." The new science proposes a social program for the improvement of the racial traits based upon the ...
— Introduction to the Science of Sociology • Robert E. Park
... to scientific demonstration. Is there, he asks, a material bond, a bodily, living, and enduring tie, between human beings of all lands and all ages?[63] He finds a proof that there is such a bond in the researches of Weismann and in that writer's theory of the germ plasm, which has now become classic.[64] In each individual, the cells of the germ plasm continue the life of the parents, of which, in the fullest sense of the word, they are living portions. They are undying. They pass, changeless, to our children ...
— The Forerunners • Romain Rolland
... additional agencies. Huxley, as we shall soon come to see, never wavered in his adhesion to the facts of evolution after 1859; but, from first to last, regarded natural selection as only the most probable cause of the occurrence of evolution. Other naturalists, of whom the best-known are Weismann in Germany, Ray Lankester in England, and W.K. Brooks in America, have come to attach a continually increasing importance to the purely Darwinian factor of natural selection; while others again, such as Herbert Spencer ...
— Thomas Henry Huxley; A Sketch Of His Life And Work • P. Chalmers Mitchell
... is not an inherited taint, but merely an acquired habit, this fact has an important practical bearing upon the proper method of dealing with it. Acquired habits, we are now being taught by Professor Weismann, are incapable of being transmitted to posterity, and Mr. Galton is of the same opinion.[42] This is not the place to elaborate the theory of inheritance, as understood by those writers; its essence, however, is that we only ...
— Crime and Its Causes • William Douglas Morrison |
