30 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 



BANKA (Continued) 

 The Banca tin mines. 



Iron Age, Vol. 35, 1885, New 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 200 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 



net Mijnwezen in Nederlandsch-Indie. 



Jaarb. Mijnw. Ned. Oost-Indie, 1894, Tech. and Admin., Amsterdam, pp. 211-239, 

 Treats of the methods of tin mining in Banka. 



79. - . Tin in Banka. 



Min. 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. 8, 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 tinwinniug op Banka. 



1907, Batavia, pis. 13. 



Not available to the authors. 



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



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



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

 Mijnw. Ned. Oost-Indie, 1897, Amsterdam. 

 Beck's article digested: Neues Jahrb. Min., 1899, II, Stuttgart, pp. 266-267. 



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 1880 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 Banka.) 



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

 illus. 7, and pis. 5. 



85. BREDEMEYER, W. Tin mining in Banca. 



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



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



