Etc tfje ISffecte of 2Hse antr IBtsuse 

 infjerttetr ? 



IMPORTANCE AND BEARING OF 

 THE INQUIRY. 



THE question whether the effects of use and 

 disuse are inherited, or, in other words, whether 

 acquired characters are hereditary, is of con- 

 siderable interest to the general student of 

 evolution ; but it is, or should be, a matter of 

 far deeper interest to the thoughtful philanthro- 

 pist who desires to ensure the permanent 

 welfare and happiness of the human race. So 



B 



