ON THE ORIGIN OF DEATH. 1 2g 



male and female germ-plasm. Third, Death is an 

 adaptation, and the duration of an animal's life has 

 been determined by natural selection, and is correlated 

 with its power of reproduction. 



Whether this theory will endure and receive even 

 fuller acceptance in the future than it does to-day, time 

 alone can show. 



