PROCEEDINGS OF THE OHIO STATE ACADEMY OF SCIENCE 

 Volume IV, Part 9 



Fifteenth Annual Report 



of the 



Ohio State 

 Academy of Science 



Organized 1891 Incorporated 1892 



Publication Committee 

 J. H. Schaffner J. C. Hambleton E. L. Rice 



Date of Publication, April 25, 1907 



x^iiiyfo 



Published by the Academy 

 Columbus, Ohio 



