30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



BANKA (Continued) 

 7G. . The Banca tin mines. 



Iron Ago, Vol. 35, 1885, Now York, p. 31. 



Description of deposits and manner of working them by the Chinese. 



77. . The best deposits of tin. 



Mg-. Sci. Press, Vol. 66, 1893, San Francisco, p. 52. 



The stanniferous deposits of Banca and Billiton are said to be the best tin 

 deposits in the world. An analysis of Banca metal gave: 



Tin : .99.961 per cent 



Iron 00.019 per cent 



Lead 00.14 per cent 



Copper 00.006 per cent 



There are 2:C<') mines worked in Banca by private companies, while Vz of that 

 number are exploited by the Dutch Government. Mines of Billiton are in possession 

 of a private concern, which pays a royalty to the government of 3 per cent of 

 annual yield. 



78. . Wetten, Gouvernements-Besluiten en Bepalingen betreffende 



het Mijnwezen in Nederlandsch-Indie. 



,laarb. Mijnw. Ned. Cost-Indie, 1894, Tecli. and Admin., Amsterdam, pp. 211-239, 

 Treats of the methods of tin mining in Banka. 



79. . Tin in Banka. 



Mill. Ind. for 1897, Vol. 6, 1898, New York and London, p. 640. 



Verbeek (Zeitschr. prakt. Geol., 1897, Berlin, p. 428) is authority for the 

 statement that the duration of the tin deposits of Banka and Billiton is limited. 

 Up to the time of writing, Banka had produced 7,000,000 piculs of tin, and the 

 existing supply amounted to only about 3,000,000. 



80. . Tin in Banka. 



Min. Ind. for 1899, Vol. S, 1900, New York and London, p. 621. 

 Mines have been under government control since 1832. Output in 1897 was 9307, 

 raising to 10,220 tons in the succeeding year. 



81. — — . Toepassing van graafwerktuigen bij de tinwinning op Banka. 



1IKI7, Batavia, pis. 13. 



Not available to tlie authors. 



82. Beck, R. Die Zinnerzlagerstatten von Banka und Billiton. 



Zeitschr. prakt. Geol., 1898, Berlin, pp. 121-127. 



Review of R. Verbeek, Geologische Besehrijving van Bangka en Billiton. Jaarb 

 Mijnw. Ned. Oost-Indii', 1897, Amsterdam. 

 Beck's article digested: Ncues Jahrb. Min., 1899, II, Stuttgart, pp. 26G-267. 



83. Benedict, Wm. de L. Tin in East Indies. 



Min. Ind. for 1892, Vol. 1, 1893, New York and London, pp. 445-446. 

 Occurrence of tin in island of Banca and Billiton described. Production from 

 islands from ISSO to 1892 given. 



84. Boers, R. J. Over het gebruik van krachtinstallaties tot grondverzet 



bij de tinontginning op het eiland Banka. 



(On the application of power machinery for the working of tin ground in the 

 island of Banlva.) 



Jaarb. Mijnw. Ned. Oost-Indie, Vol. 32, 1903, Batavia, pp. 190-218. With 3 Append., 

 illus. 7, and pis. 5. 



85. Bredemeykr, W. Tin mining in Banca. 



Mg. Sci. Press, Vol. 25, 1872, San Francisco, p. 21. 



Digest: Oest. Zeitschr. Berg. Hutt., Vol. 21, 1873, Wien, p. 76. 



