UNIVERSITY OF ILLINOIS BULLETIN 
Issuer WEEKLY 
XXIV SepreEmBER 14, 1926 No. 2 
[Entered as seeond-class matter, December 11, 1912, at the post office at Urbana, Illinois, 
under the Act of August 24, 1912. Acceptance for mailing at the special rate of postage 
provided for in section 1103, Act of October 3, 1917, and authorized July 31, 1918.] 
BUREAU OF BUSINESS RESEARCH 
COLLEGE OF COMMERCE AND BUSINESS 
ADMINISTRATION 
BULLETIN NO. 10 
THE PRODUCTIVITY RATIOS 
OF PUBLIC UTILITY 
COMPANIES 
PUBLISHED BY THE UNIVERSITY OF ILLINOIS, URBANA 
1926