NO. 2 BIBLIOGRAPHY OF TIN HESS 123 



MEXICO (Continued) 



Tin in veins and alluvial. One tract of over 200 square miles, hastily prospected, 

 shows stream tin in every water course, yielding by washing, from 5 to 20 per cent 

 tin ore. Can be worked by hydraulicking at small cost. Vein tin yields from 60 to 

 70 per cent metallic tin; very free from injurious impurities. Country granite. 



MICHIGAN 



785. STEVENS, HOKACE J. Tin in Michigan. 



Mg. Journ. Railw. Comm. Gaz., Vol. 76, 1904, London, p. 233. 



Sketch of desultory attempts at tin mining in United States, with brief mention of 

 recent discoveries of deposits in Keeweenaw County, Michigan. 

 (These " discoveries " proved false.) 



MISSOURI 



786. DUNSTAN, R. W. Discovery of tin in Missouri. 



Mg. Journ., Railw. Comm. Gaz., Vol. 37, 1867, London, pp. 699, 731. 



A letter giving very encouraging outlook for the tin in Missouri, 100 miles south of 

 St. Louis, in a mountainous district of granite, trap and porphyritic rock. States 

 that lodes run nearly north and south. Tin also occurs in alluvial floors, decomposed 

 granite and black sand. 



787. GENTH, P. A. Tin ore in the United States. 



U. S. Railroad and Mg. Journ., May 4, 1870, Philadelphia. 



Reprint: Eng. Mg. Journ., Vol. 9, 1870, New York, p. 322. 



Mg. Journ. Railw. Comm. Gaz., Vol. 40, 1870, London, pp. 486-487. 



Extract: Ann. Mines, ser. 6, Vol. 17, 1870, Paris, pp. 572-575. 



Treats briefly of the tin deposits in the United States. Tells of the pretended dis- 

 covery of tin in Missouri and the resulting excitement; gives analysis of supposed tin 

 ore sent from Madison County, Mo., and states that traces of tin were found in one 

 specimen; also gives analyses of two concentrates from San Jacinto, Cal. 



WHEELER, H. A. hee No. 1423. 



MONTANA 



HANKS, H. G. See No. 218. 



787a. RAYMOND, ROSSITER W. Statistics of mines and mining in the states and 

 territories west of the Rocky Mountains. 



Fourth annual report of Rossiter W. Raymond, United States Commissioner of Min- 

 ing 1 Statistics [for the year 1871], Washington, D. C., 1873, pp. 288-289. 



*' A Mr. Hall has several bars of tin, weighing a couple of pounds each, reduced 

 by himself from ore picked from the gravel at the adjacent bar [Big Prickly Pear 

 Creek]. The ore is very pure, and similar to the float tin found in Durango, 

 Mexico. Some prospecting has been done for the ledge that this ore is evidently 

 derived from, but so far without success." Entire reference. 



NEVADA 



788. HOFFMAN, W. J. On the mineralogy of Nevada. 



Bull. U. S. Geol. Geogr. Surv. Terr., Vol. 4, 1878, Washington, D. C., p. 734. 

 The only locality in Nevada where stream tin occurs is at the Tuscarora placer 

 mines where small crystals are occasionally found. 



NEWFOUNDLAND 



789. MILNE, J. Notes on the physical features and mineralogy of New Found- 

 land. 



Quart. Journ. Geol. Soc. London, Vol. 30, 1874, London, p. 745. 

 States that tin is found in New Foundland, but whether in paying quantities is not 

 yet determined. 

 5 



