NO. 2 BIBLIOGRAPHY OF TIN HESS 155 



SOUTH DAKOTA (Continued) 



1024. ULKE, TITUS. A contribution to the geology of Dakota tin mines. 



Eng. Mg. Journ., Vol. 53, 1892, New York, p. 547. 



Thinks granitic dikes are of igneous origin but says they show little metamorphos- 

 ing action on the schists. Mentions apatite, triplite, heterosite, triphylite, almandite, 

 wolframite, beryl, sphalerite, cuprocassiterite, graphite. Calls attention to absence 

 of fluorine minerals, hornblende, molybdenite, etc. Tin segregated in pockets or 

 zones with intervening barren places. L. C. Graton. 



. See No. 1646. 



1025. VINCENT, M. C. The tin deposits of Dakota. 



Mg. Journ. Railw. Comm. Gaz., Vol. 58, 1888, London, pp. 971-972. 



Extracts from a report on the Black Hills deposits. Tin occurs in granite in two 

 distinct forms or types, " 1st of the approximately circular or columnar form, where 

 the granite mass stands almost vertical, and 2d, those filling a long narrow, longi- 

 tudinal rent or fissure." 83 assays of black tin made by author averaged 74.31 per 

 cent metallic tin. Absence of iron, lead, arsenic, and zinc. Description of mines. 

 Author believes that mines will prove productive. 



SPAIN 



1026. ANONYMOUS. L'industrie minerale de 1'Espagne en 1893. 



Rev. Univ. Mines Met. Trav. Publ. Sci. Arts Appl. Indust., ser. 3, Vol. 26, 

 1894, Paris and Li6ge, p. 236. 



The provinces of Orense, Pontevedra and CbruHa are mentioned as tin producing, 

 while that of Salamanca has ceased since 1894 on account of heavy taxation. 



1027. . Tin in Spain and Portugal. 



Min. Ind. for 1897, Vol. 6, 1898, New York and London, p. 641. 



According to report of U. S. Consul at Corunna, tin ore has been worked con- 

 siderably in Galicia during late years. There is a wide tin-bearing belt, which runs 

 from Zamora through a corner of Portugal, through the Province of Orense and from 

 there through Santiago up to the coast, nearly 250 miles. 



BECK, RICHARD. See No. 1299. 



1028. BORLASE, WILLIAM COPELAND. Tin mining in Spain, past and present. 



London (1898), pp. 40, illus. 10, map 1. 



Gives a historical sketch and generalized account of tin mining in Spain, with a 

 few references to Portugal. Geology is lightly skimmed. Thinks there is a large 

 quantity of ore in Spain carrying 2 1 /& per cent tin. 



BROWN, A. SELWYN. See Nos. 1307 and 1308. 



1029. CALDERON, D. SALVADOR. La cassiterite y los filones estanniferos de 



nuestra Peninsula. 



Bol. Soc. esp. Hist. Nat., Vol. 1, 1901, Madrid, pp. 231-240. 



Digest: Geol. Centr., Vol. 2, 1902, Leipzig, p. 357. 



L'auteur donne la bibliographie concernant les filons stannifferes depuis 1847 a 1900, 

 et examine les regions' stanniferes de la Peninsule, qui se groupent en une region 

 principale situe dans la Galice et passe en Portugal, et en gisements fipars, de peu 

 d'importance. Choffat. 



1030. CALVERT, ALBERT F. Impressions of Spain. 



1903 (?) London. 



Reviewed: Austr. Mg. Stand., Vol. 31, 1904, Sydney and Melbourne, p. 87. 

 Tin is mentioned as among the resources of Spain, yet " considerably untouched." 

 Not available to the authors. 

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