J. T. Cunningham

J. T. Cunningham
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INTRODUCTION   Historical Survey Of Theories Or Suggestions Of  Chemical Influence In Heredity Weismann, strongly as he denied the possibility of the transmission of somatic modifications, admitted the possibility or even the fact of the simultaneous modification of soma and germ by external conditions such as temperature. Yves Delage [Footnote: Yves Delage, L'Hérédité (Paris, 1895), pp.... more...