INTERNATIONAL CONGRESS 



OF 



ARTS AND SCIENCE 



EDITED BY 



HOWARD J. ROGERS, A.M., LL.D. 



DIRECTOR OF CONGRESSES 



VOLUME XII 



MEDICINE AND TECHNOLOGY 



COMPRISING 



Lectures on Obstetrics and Gynecology, Pediatrics, 



Otology, Electrical and Mining Engineering, 



Civil and Mechanical Engineering, 



Technical Chemistry, and 



Agriculture 



UNIVERSITY ALLIANCE 



LONDON NEW YORK 



