Hence, transmutation is simply a physiological pro- 

 cess, a phyletic growth. 



The changes, which the individual organism experi- 

 ences during its life in its material, physiological and mor- 

 phological organization, are in part transmitted to its pro- 

 geny. The changes thus acquired become more marked 

 from generation to generation, until finally they result in a 

 perceptible new structure." MtVE /v 



"In this process, new or changing external influences ' 

 undoubtedly exercise great activity, but the same influ- 

 ences, constantly repeated, must in the course of time also 

 produce a cliange in the organisms through the physiolog- 

 ical activity, which is conditioned by them, so that after a 

 long time elapses, a species will have changed even in an 

 unvarying environment and will react on new influences in 

 a manner quite different from their progenitors ; their "con- 

 stitution" has undergone a change." K-<>0^ 



"This organic growth of living beings takes place re- 

 gardless of the active use of the organs and in many cases 

 remains independent of this (Lamarckian) factor of trans- 

 formation. But use may exercise considerable influence on 

 the formation resulting from the primitive organic growth, 

 by modifying the growth, by restricting it to those parts 

 most frequently called into use, or even by depriving other 

 parts of the necessary matter (compensation)." 



"The Lamarckian principle, therefore, offers but a pos- 

 sible and to transformation, the principal cause is to be 

 found in organic growth." 



S2 



