1752 REPORT OF THE CHIEF OF ENGINEERS. 



CONTENTS. 



Chapter I. — The Country and its Nature : 



I. Its name, area, and early settlement. 

 II. Its general character. 



III. Trends of slopes. 



IV. Seasons. 

 V. Climate. 



Chapter II. — Agricultural and Pastoral Pursuits. 



Chapter III. — Lines of Communication: 

 I. Railroads. 

 II. Wagon-roads. 

 III. Trails. 



Chapter IV. — Population. 



Chapter V. — Mines and Mineral Wealth. 



Chapter VI.— Botany: 



I. Classification of collection by Prof. Asa Gray. 

 II. Notes on the botany of the San Juan by Mr.^T. S. Brandegee, C. E. 



Chapter VII. — Entomology: 



I. Classification and reports on Orthoptera by Prof. Cyrus Thomas. 

 II. Classification and reports on Lepidoptera by Prof. Herman Strecker. 



