CONTENTS. 
CHAPTER I. 
Page. 
Methods pursued in determining the data upon which are based the maps and report of the survey. 1 
CHAPTER II. 
General description of the country along the route. 5 
CHAPTER III. 
Of the Indian tribes. 13 
CHAPTER IV. 
Military character of the route... 18 
CHAPTER V. 
Agricultural and mineral resources of the route..... 25 
CHAPTER VI. 
Of boring or digging for water on the Llano Estacado... 35 
CHAPTER VII. 
Construction of a railroad along the route, and its estimated cost....... 39 
CHAPTER VIII. 
General summary, business of the road, &c........ 47 
APPENDIX. 
A. —Diary of the expedition, by J. H. Byrne, assistant computer: 
CHAPTER I. 
From the Rio Grande, at El Paso, to the Pecos, at the thirty-second parallel......... 51 
CHAPTER II. 
From the valley of the Pecos to the Sulphur Springs of the Rio Colorado of Texas.... 59 
CHAPTER III. 
From the Sulphur Springs of the Colorado to the Clear Fork of the Brazos....... 73 
CHAPTER IV. 
From the Clear Fork of the Brazos to the valley of the Red river........ 86 
B. —Preliminary report on the natural history, by Spencer F. Baird....... 94 
C. —Report on the specimens of soils and mineral waters, by Jas. C. Booth...... 96 
