224 REPORT OF THE SECRETARY GENERAL. 



Mining, the pioneer of intimate commercial relations, by Frederick F. 



Sharpless. 

 Origin, development, and present status of United States mining laws, by 



J. W. Thompson. 

 Placer mining methods and operating costs, by Charles Janin. 

 The American Mining Congress and its work, by Carl Scholz. 

 The fiiel situation in the Andean plateaus, by Benjamin Leroy Miller and 



Joseph T. Singewald, jr. 

 The history and development of gold dredging in Montana, by Hennen 



Jennings. 

 The mine of the Chile Exploration Company, Chuquicamata, Chile, by 



Pope Yeatman. 

 The mining laws of Colombia, by Phanor J. Eder. 

 The nitrate industry, by Enrique Cuevas. 

 The United States Bureau of Mines, by Van H. Manning. 

 The value of technical societies to mining engineers, by Rossiter W. Ray- 

 mond. 

 Uniformity in statistics, by Edward W. Parker. 

 Value of mining property: A discussion of the relatians between northern 



capital and South American mines, by J. R. Finlay. 



SUBSECTION 2. 



METALLURGY. 



Assayiyig in the United States Mint Service, by Robert W. Woolley. 



Bolivian tin and its relation to the United States, by Howland Bancroft. 



Coal dust firing in reverberatory furnaces, by C. R. Kuzell. 



Concentracidn por flotacidn, by Federico G. Fuchs. 



Cuban iron mines and methods, by James E. Little. 



Estudio sobre concentracidn y metalurgia, concretado al mineral de San 



Antonio de Oriente, by Juan Miguel Callejas. 

 Improved mining and metallurgical methods as an aid to conservation, 



by L. D. Ricketts. 

 Lead and zinc resources of the United States, by C. E. Siebenthal. 

 Metallurgical operations of the Chile Exploration Co., by C. A. Rose. 

 Metallurgy of the concentrating a^id smelting plants of the Braden Copper 



Co., by R. E. Douglass and B. T. Colley. 

 Metallurgy of the native-silver ores of southwestern Chihuahua, by W. M. 



Brodie. 

 Metallurgy of tin ores in Bolivia, by Scovill E. HoUister. 

 Ore dressing, by Robert Hallowell Richards. 



