CONTENTS. 
PART I. 
LJ Page. 
gon aia by Mr. James A. Snyder, under the direction of Lieut. E. G. Beckwith, U.S. A., in an expedition made 
is charge from Great Salt Lake, Utah Te R E west to the Sacramento iud in eet in the 
iom of May, June, and July, 1854 119 
PART II. 
Plants collected by Mr. F. Creutzfeldt, under the direction of Capt. J. W. Gunnison, U. .A., in charge of explorations 
for a railroad from Fort Leavenworth, via the Kansas, Arkansas, and Huerfano rivers, the Sangre de Cristo Pass, 
. San Luis valley, Coochetopa Pass, Grand and Green rivers, and thence into the Great Basin, in the ore of the 
Sevier or Nicollet lake. The collection was made from early in June to late in October, 1853 
