

New York State Museum Bulletin 



Entered as second-class matter November 27, 1915, at the Post Office at Albany, N, Y. 

 ander the act of Augost 24, 1912 



Published monthly by The University of the State of New York . 



Nos. 221, 222 ALBANY, N. Y. May-June, 1919 



The University of the State ofN^^^^^^fir^ 

 New York State Museuiftl dl6966 



S^almo^^^ 



ORGANIC DEPENDENCE AND 

 DISEASE 



THEIR ORiaiN AND SIGNIFICANCE 



BY 

 JOHN M. CLARKE 



D.SC, COLGATE, CHICAGO, PRINCETON 



LL.D., AMHERST, JOHNS HOPKINS 



MEMBER OF THE NATIONAL ■ ACADEMY OP SCIENCES 



NEW YORK STATE PALEONTOLOGIST 



ALBANY 



T:dE UNIVERSITY OF THE STATE OF NEW YORK 

 1921 



