PROCEEDINGS OF THE OHIO ACADEMY OF SCIENCE 
Volume VII. Part 6 
ANNUAL REpoRT 
OF THE 
OuIo ACADEMY OF SCIENCE 
Thirty- First Meeting 
EOe2 
Organized 1891 Incorporated 1892 
Affiliated with the American Association for the Advancement of Science 
PUBLICATION COMMITTEE 
J. H. SCHAFFNER L. B. WALTON L. G. WESTGATE 
Date of Publication, January 10, 1922 
Published by the Academy 
Columbus, Ohio 
