iv CONTENTS. 
Page. 
D. —Note, on the geological report. 98 
E. —Table of camping places along the direct line of survey. 98 
F. —Tables of meteorological observations. 100 
G. —Table of latitudes, longitudes, and magnetic decimations. 104 
H. —Table showing the altitudes of stations above the sea-level....... 105 
I. —Observations for determining profile from El Paso to Preston, on Red river... 108 
J. —Observations for determining the profile from the Emigrant Crossing of the Pecos to the Big Springs of the Colorado. Ill 
K. —Observations for determining the profile through San Augustine Pass of the Organ mountains. Ill 
L. —Tables of astronomical observations. 112 
BOTANY. 
Report on the botanical collection, by Dr. John Torrey and Prof. Asa Gray.......... 157 
