InvtP 



QE 

 665 

 .H37 

 1899 



A 





ELEMENTARY NATURAL HISTORY SERIES 



No. 2 



f&? 



-X- 



KEY 



TO THE 



UPPER 



DEVONIAN 



OF SOUTHERN 



i 



NEW YORK 



■X - -5f 7f 



Designed for Teachers and Students 

 In Secondary Schools 



■K 



BY 



Gilbert Dennison^ Harris, 



Assistant Professor, Paleontology a\^Stpetttgraphic Geology, 



Cornell University; 



Geologist to the State of Louisiana; 



Member of the Geological Society of France 



Ithaca 



For Sale by the Co-Operative Society, Cornell University, Ithaca, N. Y. 

 Price: Pamphlet Form, $ 0.25; Postage, $ 0.03: Flexible Board, $ 0.30; Postage, $0.05. 



