Vi THE STORY OF THE LIVING MACHINE. 



glance at the yet unexplored realms and un- 

 answered questions will be profitable. For this 

 purpose this work is designed, with the hope that 

 it may give a clear idea of the trend of recent 

 biological science and of the advances made to- 

 ward the solution of the problem of life. 



MlDDLETOWN, CONN., U. S. A. 



October /, 1898. 



