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wall, vol. 10, 1887, pp. 146-156. 
Relation of tin lodes to older dikes; vein minerals— tourmaline, quartz, and miea; 
depth of workings; physical character of the rich tin ore; passing of tin ore into 
the granite wall; average richness of tin ore from a number of Cornish mines. 
Halse (Edward). The occurrence of tin ore at Sain Alto, Zacatecas, with reference 
to similar deposits in San Luis Potosi and Durango, Mexico: Trans. Am. Inst. 
Min. Eng., vol. 29, 1900, pp. 502-511, figs. 1-6. 
Describes the occurrence of the various ore bodies. 
Hanks (II. G.). Cassiterite: Fourth Annual Report of the State Mineralogist of Cali- 
fornia, 1884, pp. 115-123. 
Notes on tin ores from Temescal, Cal. 
Hofman (H. O.). Dry assay of tin ore: Trans. Inst. Min. Eng., vol. 18, 1890, pp. 
3-54. 
Describes an exhaustive series of experiments with the ores of the Black Hills to 
ascertain the best method of assaying tin ores. 
Ingalls (W. R. ). The tin deposits of Durango, Mexico: Trans. Am. Inst. Min. 
Eng., vol. 25, 1896, pp. L46-163. 
Presents a map of a portion of Mexico, showing the location of the tin-ore deposits, 
describes the general geologic features and the character and distribution of 
the ore bodies, and discusses their origin. 
Kempton (C. W. ). The tin deposits of Durango, Mexico: Trans. Am. Ins. Min. 
Eng., vol. 25, 1896, pp. 997-998. 
In discussion of paper on the same subj eel by W. R. Ingalls, mentions an occur- 
rence of tin placers at Sain Alto, Zacatecas, Mexico. 
Louis (Henry). Metallurgy of tin: The Mineral Industry, vol. 5, 1896, pp. 533-688. 
Methods of smelting tin; character of furnace lining, etc. Three stages in tin 
smelting: (1) reduction; (2) refining impure tin; (3) cleaning the slags. 
Louis (Henry). Production of tin. Reprint of scries of articles in the Min. Jour., 
Railway and Commercial Gazette, 12 mo., 3!) p. and map 3s., London, 1900. 
Minciiin (J. B.). Tin in Bolivia: The Mineral Industry, vol. 11, 1902, pp. 588-590. 
Description of tin-producing districl and tin-bearing lodes; methods of mining, 
transporting, and concentrating tin ores. 
Owens (F. ). A review of the tin industries of the Malay Peninsula up to the end 
of 1899: The Mineral Industry, vol. 9, 1901, pp. (146-656. 
Penrose (R. A. F. ). Tin deposits of the Malay Peninsula: Jour. Geol., vol. 11, 
L903, pp. 135-154. 
Geology of the Kinta district; description of tin placers; methods of mining and 
treating tin ores. 
Phillips (J. A.) and Louis (Henry). Treatise on ore deposits: MacMillan '& Co., 
London, 1896. 
Description of both alluvial and lode deposits of tin in various parts of the world, 
and discussion of the genesis of tin ore. 
Phillips (William). "On the veins of Cornwall," and "Oxide of tin:" Trans. 
Geol. Soc. London, vol. 2, 1814, pp. 336-376. 
Standard authorities on the tin deposits of Cornwall. 
Rolker (C. M.). The alluvial tin deposits of Siak, Sumatra: Trans. Am. Inst. Min. 
Eng., vol. 20, L892, pp. 50-84. 
Notes on the geology and the occurrence and methods of working tin-bearing 
gravels. 
Rolker (C. M.). The production of tin in various parts of the world: Sixteenth 
Ann. Rept. U. S. Geol. Survey, pt. 3, 1895, pp. 458-538. 
Includes statistics of production in various countries, and notes on the occurrence 
of tin in Maine, Virginia, North Carolina, Alabama, Texas, South Dakota, and 
California. 
