EXPLORATIONS AND SURVEYS FOR A RAILROAD ROUTE FROM THE MISSISSIPPI RIVER TO THE PACIFIC OCEAN. 



WAR DEPARTMENT. 



ROUTE NEAR THE THIRTY-FIFTH PARALLEL, EXPLORED BY LIEUTENANT A. W. WITIPPLE, TOPOGRAPHICAL 



ENGINEERS, IN 1853 AND 1854. 



ZOOLOGICAL REPORT 



WASHINGTON, D . C . 

 1859. 



