Chap. III. STKUGGLE FOR EXISTENCE. 79 



ratio ; that each at some period of its life, during some 

 season of the year, during each generation or at in- 

 tervals, has to struggle for life, and to suffer great de- 

 struction. When we reflect on this struggle, we may- 

 console ourselves with the full belief, that the war of 

 nature is not incessant, that no fear is felt, that death 

 is generally prompt, and that the vigorous, the healthy, 

 and the happy survive and multiply. 



