31 



Les procedes terre á terre d'autrefois, aussi bien que les machineries, 

 fa§ons d'opérer, fom-s, méme les plus modernes et les plus économiques, 

 etc., etc., sont décrits de maniere á étre á la portee de tous. 



The Copper Mines of the World. By Walter Harvey Weed, 

 Geologist, U. S. Geological Survey, 1883-1906; Member of 

 the Institution o£ Mining and Metallurgy, etc., etc. — With 

 159 illustrations.-^New York and London. Hill Publishing 

 Co. {The Engineering and Mining Journal). 1907. 8? 375 pages. 

 $4.00. 



THs book is the only one, in any language, in which the facts con- 

 cerning occurrence and geological conditions of all the workable copper 

 mines of the world have been brought together. 



Information of this kind has only been obtainable f or particular loca- 

 lities, and by search of government reports, scientific journals or mining 

 reviews, In this volume one may find a conciso statement conceming all 

 the mines of any particular country, grouped together geographically, and 

 alphabetically arranged, 



The first half of the book is a general treatise on the production of 

 copper, is mineralogy, occun'ence and the character of the ore deposits in 

 •which it occui's — the only treatise of this kind published. 



The second part gives carefully written, concise descriptions of the 

 copper deposits of each continent, arranged by countries. This will be fo- 

 und particulary useful to mining engineers generally, as it presents full 

 Information concerning the geological relation of the ore bodies, a f eature 

 of the importance of which is becoming better recognized each year as a 

 factorin determining methods of working, exploration, etc. 



The author is an eminent authority on mining geology and during 

 bis long career in the TJ. S. Geological Survey has visited ther copper loo- 

 alities and mines of both American and foreign countries. 



Some of the features are: Geographic Distribution. Production of 

 Copper. Mineralogy of Copper Ores. Geologic Distribution and Ocurrence. 

 G-eneral Features of Copper Deposits. Génesis of Copper Deposits. Clas- 

 sification of Copper Deposits. Copper Deposits of Europe. Copper Depos- 

 its of África. Copper Mines of Asia, Oceánica and the East Indies. Cop- 

 per Mines of Australasia. Copper Mines of South America. Copper Depos- 

 its of the West Indies. Copper Deposits of Canadá and Newfoundland. 



