This work was published before January 1, 1929, and is in the public domain worldwide because the author died at least 100 years ago.
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Department of the Interior 1882 Seal
DEPARTMENT OF THE INTERIOR
U. S. GEOGRAPHICAL AND GEOLOGICAL SURVEY OF THE ROCKY MOUNTAIN REGION
J. W. POWELL in Charge
A STUDY
OF THE
MANUSCRIPT TROANO
BY
CYRUS THOMAS Ph. D.
WITH AN
INTRODUCTION BY D. G. BRINTON M. D.
WASHINGTON
GOVERNMENT PRINTING OFFICE
1882