REPRESENTATIVE LAMARCKIANS 261 



mic energy. A certain mode of motion is probably 

 transmitted through the nervous system which stores 

 up the impressions received by the parents. This is 

 Hering's heredity-memory, an idea revived recently by 

 Semon. 



Our exposition of Cope's views on ontogenesis and 

 heredity and especially on bathmism, may appear 

 somewhat vague to the reader ; unfortunately, Cope's 

 own explanations are equally vague. The important 

 point in Cope's system is the substitution of the ener- 

 getic point of view for the material point of view in 

 the conception of heredity. 



The dynamic view-point is not peculiar to Cope. It 

 is accepted by almost every Lamarckian and it is 

 based upon Lamarck's statement that the function 

 creates the organ, a statement to which the "energetic" 

 philosophy of to-day has imparted a good deal of 

 timeliness. It may be but a mere figure of speech, a 

 mere way of describing things, but this figure of 

 speech has suggested a new line of thought and given 

 a new aim to research work. 



L e D antec . the leading French Lamarckian, follows 

 an entirely different method of reasoning, a method 

 which we might characterise as speculative. To Le 

 Dantec, Darwinism and Lamarckism are not two op- 

 posite points of view but rather two ways of approach- 

 ing the same question : "Darwinism," he writes, "pro- 

 ceeds after the manner of physical sciences which 



