UNITED STATES AND MEXICAN 



BOUNDARY SURVEY, 



CNDEB THE OBDBBS OF 



LIEUT. COL. W. H. EMORY, 



MAJOR FIRST CAVALRY, AND UNITED STATES COMMISSIONER. 



GEOLOGY AND PALJIONTOLOGY 



OP THE BOUNDARY: 



BT 



JAMES HALL, 



OF ALBANY, NEW YORK. 



