AMERICAN NATURALIST 



ON HEREDITY AND REJUVENATION. 1 



By Charles Sedgwick Minot. 2 



The subject of this article is presented under the following 

 sections : 



I. The Formative Force of Organisms. 



II. The Conception of Death. 



III. A Comparison of Larva and Embryo. 



IV. Concluding Remarks. 



The first section is not new, but a reproduction without 

 change, of an article published in Science, July 3d, 1885. As 

 this article has not become generally known, and yet is an es- 

 sential link in the chain of reasoning, I venture to repeat it- 

 Though written in 1885, I consider that to-day it is still suffi- 

 cient to disprove Weismann's theory of germ plasm. Weis- 

 mann has not considered this article, otherwise, from my 

 point of view, he could not have maintained his theory. 



' This article is translated from one which appeared in the Biologisches Cen- 

 tralblatt, Vol. XV, Page 571, August 1st, 1895. A few trifling changes have 



• the Advancement of Science, at its recent Springfield meeting, 

 e Harvard Medical School. 



