. Biology and its makers. Biology -- History. THEORIES OF WEISMANN AND DE VRIES 409 and that it has given a great stimulus to experimental studies. Experiment was likewise a dominant feature in Darwin's work, but that seems to have been almost overlooked in the discussions aroused by his conclusions; De Vries, by building upon experimental evidence, has led naturalists to. Fig. 115.—Hugo de Vries. realize that the method of evolution is not a subject for argumentative discussion, but for experimental investigation. This is most commendable. De Vries's theory tends also to widen the field of ex
. Biology and its makers. Biology -- History. THEORIES OF WEISMANN AND DE VRIES 409 and that it has given a great stimulus to experimental studies. Experiment was likewise a dominant feature in Darwin's work, but that seems to have been almost overlooked in the discussions aroused by his conclusions; De Vries, by building upon experimental evidence, has led naturalists to. Fig. 115.—Hugo de Vries. realize that the method of evolution is not a subject for argumentative discussion, but for experimental investigation. This is most commendable. De Vries's theory tends also to widen the field of explo- ration. Davenport, Tower, and others have made it clear that species may arise by slow accumulations of trivial varia- tions, and that, while the formation of species by mutation. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Locy, William A. (William Albert), 1857-1924. New York, H. Holt
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