INGALL, ELFRIC DREW; BRUMELL, H. P. H.; GEOLOGICAL SURVEY OF CANADA
FLINT, ALBERT S., EDITOR; WISCONSIN ACADEMY OF SCIENCES, ARTS AND LETTERS
U. S. SENATE, 54TH CONGRESS
U. S. SENATE, 54TH CONGRESS; CLARK, JUDGE WALTER; PARSONS, PROF. FRANK
PENNSYLVANIA DEPARTMENT OF AGRICULTURE, DIVISION OF ZOOLOGY
PENNSYLVANIA DEPARTMENT OF AGRICULTURE, DIVISION OF ZOOLOGY
PENNSYLVANIA DEPARTMENT OF AGRICULTURE, DIVISION OF ZOOLOGY
PENNSYLVANIA DEPARTMENT OF AGRICULTURE, DIVISION OF ZOOLOGY
LIBRARY OF CONGRESS
LIBRARY OF CONGRESS
GALERIE GEORGES PETIT, PARIS
ICKES, HAROLD, SECRETARY OF THE INTERIOR; U. S. SENATE, 79TH CONGRESS
WISCONSIN ACADEMY OF SCIENCES, ARTS AND LETTERS
DAVENPORT ACADEMY OF NATURAL SCIENCES
PUTNAM, FREDERICK, EDITOR; AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE
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