I 
EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 
WAR DEPARTMENT. 
ROUTE NEAR TH E THIRTY-FIFTH PARALLEL, EXPLORED BY LIEUTENANT A. W. WHIPPLE, TOPOGRAPHICAL 
ENGINEERS, IN 1853 AND 1854. 
ZOOLOGICAL REPORT. 
WASHINGTON, D. C. 
1 8 5 9 . 
