BIOLOGICAL SURVEY, U.S. DEPT. OF AGRICULTURE 



FRONTISPIECE 



85- 80° 



1 I 1 



1 



|J2^M-- 





O / 



a;-'. ■',■■/. ■.■•'■'.'■'• 



Sis 





A S 1 



MISSOURll 



ja>gf5i 





;;:<^* 



.•^-. 









■■4Vl . :^ 

 ^il- •■ •■7 



^:e: 



N N E S £ 





^ 



VT-IXRKVNSAiA; 







< 



s-;. 



lili 







Vef 0-R 



JAROLIN^;; 



T/ie dottedparts of the Austral Zones cast 

 of the Great Plains inMcaie the cjctent of the 

 hjimid' divisioTLS oft7tcse Zortas. Jcnown respec- 

 tr've^'O^thc AZteffhOTa'arv.CcuvtiTUurh anJ. Aas 

 trortpaT-ia^IWitnas. Thcimcbottatpoiris of the 

 same Zones are krwwriy aj tfw TransitioTV, 

 I'jypcr SoTiorarv caieL Zower SoTwrart . 



Corrected to December, 1897, 



LIFE ZONES OF THE UNITED STATES 



BY 



C.HARTMERRIAM. 



