

COLLECTION OF ORES 



REQUIRED FOR 



Osborn's Prospector's Field Book and Guide. 



^4.71 indispensable aid and guide to users of this book. 



The list of 120 specimens includes all important minerals mentioned in the 

 text, besides illustrating the Scale of Hardness and the six systems of Crystalli- 

 zation. 



In selecting specimens from our large stock, a collection is secured which rep- 

 resents, in a brief way, the varieties with which the prospector or miner is most 

 likely to meet, and it has, therefore, a thoroughly practical value. 



The following sizes are kept in stock ready for shipment. With the neat and 

 durable oak cases they can be kept in small space. Every specimen is accu- 

 rately labeled with name, composition and locality, and numbered to correspond 

 to list. 



No. 23. Prospectors', $16.00. 120 specimens, averaging 2{x2 in. 

 Handsome oak case, three drawers, fitted with pasteboard trays, $10.25 extra. 



No. 24. Prospectors', $7.00. 120 specimens, averaging l£xl± in. Oak 

 compartment case, $1.60 extra. 



The following special sets of ores are put up to order: 



No. 25. Useful Metallic and Non-Metallic Minerals. 300 speci- 

 mens, averaging 2-^x2 in., $155.00. Includes various examples of all important 

 minerals possessing economic value. 



No. 27. Metallurgical Collection. 200 specimens, averaging 1\ x 2 in., 

 $90.00. Embracing all the more important ores of common, rare or precious 

 metals. 



No. 29. Metallurgical Collection. 100 specimens, averaging 2|x2 in. r 

 $25.00. An abridgement of No. 27. 



No. 32. Ore Associations. 60 specimens, averaging 1\ x 2 in., $12.00. 

 Including all of the minerals most commonly found with valuable ores. 



The above are sold in 1J inch sizes at about half price. 



No. 34. Gold ores. 10 specimens, averaging l£x \\ in., $10.00. 



No. 35. Silver ores. 15 specimens, averaging l£x \\ in , $7.50. 



Also series illustrating occurrence of Iron, Lead, Copper, Zinc, Nickel and 

 Cobalt, and the Rare Elements; Rough Gems and Precious Stones. 



BgP"* Minerals purchased in quantity. Send small mail samples. 



FOOTE 



FORMERLY DR. A. E. FOOTE, 



WARREN M. FOOTE, Manager. 



CO.. 



Established 1876. 



PHILADELPHIA, 

 1317 Arch Street. 



PARIS, 

 24 Rue da Champ de Mars. 



