LIST OP DOCUMENTS. 
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LIST OF DOCUMENTS ACCOMPANYING THE REPORT OF TOE SECRETARY OF WAR. 
I.—Examination "by Captain A. A. Humphreys, Topographical Engineers, of the reports of 
the explorations to determine the most practicable and economical route for a railroad 
from the Mississippi river to the Pacific ocean. 
II. —Memoranda hy Captain George B. McClellan, Corps of Engineers, upon some practical 
points connected with the construction and working of railways. 
III. —Letter of Major General Jesup, Quartermaster General U. S. A., upon the cost of trans¬ 
porting troops and supplies to California, Oregon, New Mexico, &c. 
IY.—Report of Governor I. I. Stevens upon the route near the 41th parallel. 
V.—Reports of Lieutenant E. G. Beckwith, 3d Regiment of Artillery, upon the routes near 
the 41st and 38th parallels. 
YI.—Report of Lieutenant A. W. Whipple, Topographical Engineers, upon the route near 
the 35th parallel. 
VII. —Report of Captain John Pope, Topographical Engineers, upon that portion of the route 
near the 32d parallel from Preston to the Rio Grande. 
VIII. —Report of Lieutenant John G. Parke, Topographical Engineers, upon that portion 
of the route near the 32d parallel from the Rio Grande to the Gila 
IX.—Extract from the report of Major W. II. Emory, Topographical Engineers, of a military 
reconnaissance made in 1846 and 1841. 
X.—Report of Lieutenant R. S. Williamson, Topographical Engineers, of explorations in 
California in connexion with the routes near the 35th and 32cl parallels. 
5 a 
