236 FINAL ACT OF SECOND PAN AMERICAN SCIENTIFIC CONGRESS. 



Hydroplanes for Passenger and Freight Transportation on Inland Waters. 



(With lantern slides.) 

 GONZALO MEJIA, Colombia. 



Airships to Assist in Joining North and South America. (Illustrated by 



lantern slides and moving pictures.) 

 SANTOS DUMONT, Aviator, Brazil. 



TUESDAY MORNING, JANUARY 4, 19169.30 O'CLOCK. 

 Session of Subsection 1. 



RALEIGH HOTEL, FIRST FLOOR, ENGLISH ROOM. 



E. L. CoRTHELL, Chairman. 



Instrumental Hydrographic Work in River de La Plata. 



Drainage of Basin of La Plata. 



Hydrography and Navigation of the River de la Plata. 



AGUST!N MERCAU, Vice Dean of National University^of Buenos 

 Aires, Argentina. 



Harbor and Port Terminal Facilities and Works. 



H. McL. HARDING, 52 Vanderbilt Avenue, New York City. 



Employment and Behavior of Concrete and Reinforced Concrete in Fresh 

 and Saline Waters and Under Servitude of Waves in Exposed 

 Positions. 

 CHANDLER DAVIS, i Broadway, New York City. 



Session of Subsection 3. 



RALEIGH HOTEL, FIRST FLOOR, PRIVATE DINING ROOM. 



JOHN B. WHITEHEAD, Chairman. 



Electrical Codes and Standards. 



EDWARD B. ROSA, United States National Bureau of Standards, 

 Washington, D. C. 



Recent Telegraph and Telephone Development. 



F. B. JEWETT, Assistant Chief Engineer, Western Electric Company, 

 463 West Street, New York City. (Read by Mr. SHREEVE.) 



Steel-Tripod Telegraph Posts. 



GUIIXERMO DESTRUGE, Director General of Telegraph and Tele- 

 phones, Quito, Ecuador. 



