FINAL ACT OF SECOND PAN AMERICAN SCIENTIFIC CONGRESS. 195 



THURSDAY AFTERNOON, DECEMBER 30, 19152.30 O'CLOCK. 

 Joint Session of Subsection 1 with Subsection 1 of Section VII. 



ROOM A, RALEIGH HOTEL. 



The Copper Mining Industry in the Americas. 



WALTER HARVEY WEED, Geologist and Mining Engineer, New 

 York, N. Y. 







Mining, Metallurgy, and Economic Geology. 

 Luis FLEURY, San Salvador, Salvador. 



The Conservation of Copper. 



W. H. EMMONS, State Geologist of Minnesota, University of Min- 

 nesota. 



The Conservation of Metals by the Recovery of Scrap or Used Metals. 

 J. P. DUNLOP, United States Geological Survey. 



The Possibility of Treating by the Cyanide Process the Complex Silver or 



Silver-Gold Ores of the Latin American Republics. 

 G. H. CLEVENGER, Metallurgist, Palo Alto, Cal. 



Cyaniding in South America. 



H. A. MEGRAW, Editorial Staff, Engineering and Mining Journal, 

 New York, N. Y. 



Metallurgy of Native Silver Ores in Southwestern Chihuahua. 



WALTER M. BRODIE, Mining Engineer and Metallurgist, The Batop- 

 ilas Mining Company, New York, N. Y. 



Concentration and Metallurgy at the San Antonio Mines. 



MIGUEL CALLEJAS, Director of the Mining Society, San Antonio de 

 Oriente, Honduras. 



Concentration by Flotation. 

 F. G. FUCHS, Lima, Peru. 



Joint Session of Subsection 4 with Subsection 4, Section V. 



RALEIGH HOTEL, ANTEROOM. 



M. O. LEIGHTON, Chairman. 



Irrigation and Drainage. 



F. H. NEWELL, University of Illinois. 



