ACT OF SECOND PAN AMERICAN SCIENTIFIC CONGRESS. 237 



Electrification of Transportation Lines. 



N. W. STORER, General Engineer, Westinghouse Electric and Manu- 

 facturing Company, East Pittsburgh, Pa. 



Radiotelegraphy in Uruguay. 



BERNARDO KAYEL, Montevideo, Uruguay. 



Wireless Telegraph Service and Conventions. 



EMILIO E. DAGASSAN, Engineer Lieutenant, Argentine Navy. 



Proposition for a Pan American Radiotelegraph Convention. 



Rear Admiral JUAN A. MARTIN, and Engineer Lieut. EMILIO E. 

 DAGASSAN, Argentine Navy. 



Physical Aspects of Radiotelegraphy. (Lantern slides.) 



JOHN N. HOGAN, Jr., Chief Research Engineer, National Electric 

 Signaling Company, Brooklyn, N. Y. 



Session of Subsection 4. 



Joint session of Subsection 4, Section V, with Section VIII, Subsection 4 (Public Health, Sanitation, 



Water Supply) Section VHI. 



NEW EBBITT HOTEL, SECTION VHI ROOMS. 



J. D. GATEWOOD, Medical Director, United States Navy, Chairman. 



Disposal of Sewage and Garbage. 



MORRIS KNOWLES, Oliver Building, Pittsburgh, Pa. 



Street Cleaning and Disposal of Its Refuse. 



J. W. PAXTON, Office of Engineer Commissioner, District of Colum- 

 bia, Washington, D. C. 



Papers and writers furnished by Section VIII, Subsection D : 



Disposal of Refuse. 



GEORGE A. SOPER, President, Metropolitan Sewage Commission, 



New York City. 

 WILLIAM T. SEDGE WICK, Massachusetts Institute of Technology, 



Boston, Mass. * 



J. T. FETHERSON, Commissioner of Street Cleaning, New York, 



N. Y. 



