31 



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

 fa^ons d'opérer, fours, méme les plus modernes et les plus éconriiaiques, 

 etc., etc., sont dócrit& de maniere a étre a 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 of Miuing and Metallurgy, etc., etc. — With 

 159 illusti'ations. — New York and London. Hill Publishing 

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

 $4.00. 



This book is the only ene, in any language, in which the facts con- 

 cerning occurrence and geological conditious of all the workable copper 

 mines of the world have been brought together. 



Information of this kind has only been obtainable for particular loca- 

 lities, and by search of govemment reports, scientific joumals or mining 

 reviews. In this volume one may fiud a concise statement conceming all 

 the mines of any particular country, gi'ouped together geographically, and 

 alphabetically arranged, 



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

 copper, is mineralogy, occurrence and the character of the ore deposita in 

 which it occurs — the only treatise of this Mnd published. 



The second part gives carefully wñtten, concise descriptions of the 

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

 und particulary useful to mining eugineer» generally, as it presents full 

 Information conceming 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 authoiity on mining geology and during 

 his long career in the U. S. Geological ÍSurvey has visited ther copper loc- 

 alities and mines of both American and foreign countries. 



Some of the features are: Geogi-aphic Distribution, Production of 

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

 General Featui-es of Copper Deposits. Génesis of Copper Deposits. Clas- 

 slíication of Copper Deposits. Copper Deposits of Eiirope. Copper Depos- 

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

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

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



