. Biology and man. Biology; Human beings. U Parental type MUTATIONS IN THE EVENING PRIMROSE From 1886 on, Hugo de Vries planted seeds from the common evening primrose. Among thousands of new plants grown each year he found from one to several individuals that departed in some definite way from the parental type. He gathered and planted the seeds of these deviates, and in the course of time had a number of distinct strains. From these experiences he developed the mutation theory to explain how new species originate. Please note that these images are extracted from scanned page images that may h
. Biology and man. Biology; Human beings. U Parental type MUTATIONS IN THE EVENING PRIMROSE From 1886 on, Hugo de Vries planted seeds from the common evening primrose. Among thousands of new plants grown each year he found from one to several individuals that departed in some definite way from the parental type. He gathered and planted the seeds of these deviates, and in the course of time had a number of distinct strains. From these experiences he developed the mutation theory to explain how new species originate. 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 Gruenberg, Benjamin C. (Benjamin Charles), 1875-1965; Bingham, N. Eldred (Nelson Eldred), 1901-. Boston, New York, [etc. ] Ginn and company
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Keywords: ., book, bookcentury1900, booksubjectbiology, booksubjecthumanbeings
