Note 141 — THE INDIVIDUAL ORGANISM WITH REGARD TO FORM AND METABOLISM (continued 4)

H. de Vries, Species and Varieties: their Origin by Mutation, London, 1905. A short review of the “mutation-theory” is given by Francé in Zeitschrift f. d. Ausbau d. Entwickelungslehre, i. 1907. It is well known that Gautier, and, in the first place, Korshinsky, advocated a similar view previous to the authors named in the text.