AMERICAN 

 NATURALIST 



A MONTHLY JOURNAL 

 Devoted to the Advancement of the Biological Science! with 

 Special Reference to the Factors of Evolution 



CONTENTS 



i in Man. Gertrude C. Da 



i Discussion: The Arithm 

 Coefficient of Correlation: 

 SchJosser on Faytim 

 The Ophidian Genus Grayia : Professor T. D 



THE SCIENCE PRESS 

 LANCASTER. PA. GARRISON, N. T. 



NEW TORS : STTB-STATION 84 



