1807] WOMAN IN EVOLUTION OF HUMAN RACE 93 



warned, if this be possible, that their organisations are not of such 

 a kind that they can rely upon continuous and certain progress. 

 The laws of evolution point distinctly to a future in which retro- 

 gression and extinction is perhaps certain ; but man's past history 

 and the same laws also hold out hopes for the maintenance of 

 progress through an indefinite time, if he is capable of controlling 

 his own destiny through the right use of experience and of the 

 wonderful control over nature that his capacities have enabled him 

 to attain. Alpheus Hyatt. 



Boston Society of Natural History, 

 Boston, Mass., U.S.A. 



