On cover: University of Illinois bulletin, v. 13. no. 10; Nov. 8, 1915."Submitted in 1909 as a thesis in partial fulfillment of the requirements for t...
On cover: University of Illinois bulletin, v. 13. no. 10; Nov. 8, 1915.
"Submitted in 1909 as a thesis in partial fulfillment of the requirements for the doctor's degree of the Graduate school of the University of Illinois."