^Organic Dependence and Disease? 

 Their Origin and Significance. 



By John M. Clarke, 



X. 



D.Sc., Colgate, Chicago, Princeton 



LL.D., Amherst, Johns Hopkins 



Member of the National Academy of Sciences 



New York State Paleontologist 



New Haven: 



Yale University Press. 



London, Humphrey Milford, Oxford University Press. 



Mdccccxxi. 



