AUTHORITIES CONSULTED. 



The following list contains the names of the different pub- 

 lications consulted to obtain data, especially for the tables. 

 Dates are not usually given, as in many cases the entire file 

 was used since 1868. 



Alkali Reports, England. 



American Engineer. 



American Gas Light Journal. 



American Manufacturer. 



Annalen der Chemie und Physik. 



Annales de Chimie et Physique. 



Annales des Mines. 



Australian Mining Standard. 



Bayerisches Industrie und Gewerbeblatter. 



Bell, Sir I. L., Chemical Phenomena of Iron-smelting. 



Berichte der Deutscher Chemischer Gesellschaft. 



Berthelot, Essai de Mecanique Chimique. 



Berthier, Traite des Essais par la Voie seche. 



Bulletin No. 21, U. S. Dept. Agriculture. 



" University of Wyoming. 



" de la Societe Industrielle de Mulhouse. 



" de la Societe Chimique de Paris. 



" de 1'Association des Proprietaires d'Appareils a Vapeur du 



Nord de la France. 

 Chemical News. 

 Colliery Guardian. 



Comptes Rendus de I'Academie des Sciences. 

 Crookes and Rohrig, Metallurgy. 

 Dingler's Polytechnisches Journal. 

 Dufrenoy, Traite de Mineralogie. 

 Electrical Engineering. 



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