NO. 2 BIBLIOGRAPHY OF TIN HESS 121 



MEXICO (Continued) 



Describes deposits and method of producing ore. Ore formation is of an " unusual 

 nature consisting of cracks in the rhyolite which have been filled with clay." These 

 clay stringers carry a mixed mineralization, particularly in the form of iron and tin 

 oxide. Deposits not considered of commercial value. 



Data showing results from smelting various classes of ore given. Methods of treat- 

 ment of the ore are described. 



767. CHANDLER, C. P. On tin ore at Durango in Mexico. 



Amer. Journ. Sci. Arts, 2d ser., Vol. 39, 1865, New Haven, p. 349. 

 The cassiterite is in form of wood-tin and is accompanied by topaz. Gives crucible 

 assay. 



768. COLLINS, J. H. Specimens of tinstones from Durango. 



Journ. Roy. Inst. Cornwall, Vol. 13, pt. 1, 1895-1898, Truro, p. 129, about 150 words. 

 Describes specimens of tin ore from Durango, Mexico. 



769. DEL MAR, ALEX. History of the precious metals. 



2d edition, revised. 1902, New York, p. 206. 



States Cortes reported that " chisel-shaped " tin money was used in Mexico, and 

 that specimens are in the " Paris collection." 



770. FAWNS, SYDNEY. Tin deposits of the world. 



Published by the Mining Journal, 1905, London. Tin deposits of Mexico, pp. 154- 

 157, 1300 words. 



Compilation from Ingalls' "Tin deposits of Durango, Mex."; Louis' "Production 

 of tin"; and Nevius' "The Sain Alto tin deposits." 



771. GENTH, F. A. On the occurrence of tin ores in Mexico. 



Proc. Amer. Philos. Soc. Vol. 24, 1887, Philadelphia, pp. 23-35. 



Description of specimens of tin ore from Sierra de Catalan, State of Durango, Mexico. 

 Small crystals of hematite are replaced by cassiterite. Also mentions wood tin and 

 other forms from various Mexican localities, which contain much iron and arsenic. 

 Quotes from Wm. Sernmons, concerning a deposit of Sn0 2 upon bismuthinite. 



772. GROSE, JOSEPH. Tin discovery in Mexico. 



Mg. Journ. Railw. Comm. Gaz., Vol. 43, 1873, London, p. 863. 



Alluvial tin ore washed down from the mountains is found scattered over an area 

 of several square miles, 250 miles southwest of the city of Mexico. 



773. HALSE, ED. The occurrence of tin ore at Sain Alto, Zacatecas, with 



reference to similar deposits in San Luis Potosi and Durango, Mexico. 



Trans. Amer. Inst. Mg. Eng., Vol. 29, 1900, New York, pp. 502-511, figs. 1-6. 

 Abstract: Eng. Mg. Journ., Vol. 68, 1899, New York, p. 428. 



Describes occurrences of tin ore in other localities than Durango, and compares them 

 with the latter. Description of tin smelting at Las Cuevas. 



774. HANKS, HENRY G. On the occurrence of durangite in the tin-bearing 



region of Durango, Mexico. 



Amer. Journ. Sci. Arts, ser. 3, Vol. 12, 1876, New Haven, pp. 274-275. 

 Description of the tin deposits of Durango. Durangite is found only in the " Bar- 

 ranca " tin mine, eighteen miles northwest from Coneto, State of Durango. 



775. HUMBOLDT, ALEXANDER DE. Essai politique sur le royaume de la Nouvelle- 



Espagne. 



1811, Paris, Vol. 3, pp. 203, 299, 306-307; Vol. 4, pp. 105-106, 194-195. 

 Extract: Arch. Bergb. Hiitt., Vol. 17, 1828, Breslau and Berlin, pp. 358-359. 

 Extract by A. J. M. Brochant, Notice sur les Mines du Mexique. Journ. Mines, 

 Vol. 30, 1811, Paris, p. 104. 

 Briefly treats of tin occurrences in Mexico. 



