CONTENTS . 1 
PREFATORY NOTE. 
No. 1. 
REPORT UPON FISHES COLLECTED ON THE SURVEY. 
BY DR. CHARI.ES GIRARD. 
No. 2. 
REPOET UPON THE ZOOLOGY OF THE EOUTE. 
BY J. S. NEWBERRY, M. D. 
CHAPTER I. 
Report upon the Mammals. 
CHAPTER II. 
Report upon the Birds. 
No. 3. 
REPORT UPON LAND SHELLS COLLECTED ON THE SURVEY. 
BY W. G. BINNEY, 
MEMBER OF THE ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 
Wo. 4. 
REPORT UPON REPTILES COLLECTED ON THE SURVEY. 
BY S. F. BAIRD. 
1 Numbers 1, 2, and 3 will be found in Yol. VI of the Pacific Railroad Surveys, printed and published in 1857. 
dates 1859. 
No. 4 
