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 are continuously 

 numbered; each number is paged independently. 



Entered as second-class matter, March 27, 1916, at the postoflQce at Blooming- 

 ton, Ind., under the act of August 24, 1912. The Indiana Univeksity Studies are 

 published six times a year, in January, March, May, July, September, and Novem- 

 ber, by Indiana University, from the University Oflace, Bloomington, Ind. 



