The Indiana University Studies are intended to furnish a 
means for publishing some of the contributions to knowledge made 
by instructors and advanced students of the University. The 
Studies a/re continuously numbered; each number is paged inde- 
pendently. 
Entered as second-class matter, June 14, 1918, at the post-office at Bloomington, 
Ind., under the act of August 24, 1912. The Indiana University Studies are published 
four times a year, in March, June, September, and December, by Indiana University, 
from the University Office, Bloomington, Ind. 
