id author title date pages extension mime words sentences flesch summary cache txt 34077 Weismann, August On Germinal Selection as a Source of Definite Variation .txt text/plain 24970 1174 58 protective coloring has selective value for the species, that is, that if will carry us in the explanation of such cases--natural selection, I mean, place where it is determined what variations of the parts of the organism by man rests on the fact that by means of the selection of individuals progressive variation of a given part is produced by continued selection in displacement of the zero-point of variation as the result of selection. that the displacement of the zero-point of variation by personal selection this or that primary variation's being preferred, the selective process process of adaptation rested entirely {52} on personal selection. variation by personal selection, is impossible; for where all units are expected, if it is a fact that selection favors only the useful variations Without the Aid of Natural Selection_, 1894, regards the variations transforming the species, but that definitely directed variation is ./cache/34077.txt ./txt/34077.txt