56 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 58 



CHINA (Continued) 



262. , Tin mines in southwestern China. 



Eng. Mg. Journ., Vol. 46, 1888, New York, p. 152. 



Notes on a trip by Mr. F. S. A. Bourne, British Consular Agent at Chung King, 

 quoted as stating that nuore than 1000 men are said to be employed in Southern 

 Yunnan, Kuochinchang, in the tin mines of the region. 



263. . The mineral resources of China, 



Mg. Journ. Railw. Comm. Gaz., Vol. 67, 1897, London, p. 915. ' 



Richest tin mines are located in department of Lingngau-fu, southeastern, portion 



of Yunnan, whence the metal comes in shape of small truncated pyramids weighing 



about 2 catties each. 



264. . Tin in China. 



Min. Ind. for 1898, Vol. 7, 1899, New York and London, p. 711. 



According to a report of the French Commercial Mission, the province of Yun- 

 nan now exports annually 2500 metric tons of tin. This is obtained from alluvial 

 deposits at Kotchiou, 20 miles from Moung-tse. 



265. . Tin mining in Indo-China. 



Eng. Mg. Journ., Vol. 80, 1905, New York, p. 829, 200 words. 



Tin has been obtained in the province of Yunnan for many years, most of it never 

 reaching the outside world. More recently, alluvial deposits have been opened in 

 the vicnity of Cao-Bang, in the north of Tonkin. 



266. . Tin production in China. 



Eng. Mg. Journ., Vol. SI, 1906, New York, p. 1238. 



Note stating that China has long been a producer of tin for domestic consumption, 

 although there is little information on the subject. Amount exported in 1904 was 

 50,043 piculs, valued at £478,082. 



Beck, Richard. See No. 1299. 

 Browne, Frank. See No. 1458. 

 266a. Collins, W. F. Tin production in Yunnan, China. 



Bull. Inst. Mg. Met., Dec. 5, HXi9, London, 3.>()0 words, illus. 5. 



Abstract: Mg. Journ. Railw. Comm. Gaz., Vol. 88, 1910, London, pp. 195-190, illus. 



Review: Eng. Mg. Journ., Vol. 89, 1910, New York, p. 781. 

 Treats of the occurrence and nature of the mines and ore; mining and concentration; 

 mining laws and customs; dressing and smelting. 



D'AcHiARDi, Antonio. See No. 1313. 



267. Grosier, Jean Baptiste Gabriel Alexander. A general description of 



China. 



1795, London, p. 400, English Edition. 



Mentions that " iron, lead and tin mines must be very common, since these metals 

 are sold at a low rate throughout the whole empire." 



268. Leclere, a. Etude geologique et miniere des provinces chinoises 



voisines du Tonkin. 



Ann. Mines, ser. 9, Vol. 20, 1901, Paris, pp. 345-348, 439-440, 474-476. 



Digest and translation: Trans. Inst. Mg. Eng., Vol. 25, 1902-1903, London and 

 Newcastle-upon-Tyne (1904), p. 823. 



Tin occurs at Tomuko, Tsementong, Kotiou, and Malaken, in province of Yunnan. 

 Some of the tinstone occurs in veins in Triassic limestones, but there are also 

 secondary ore bodies, from the decomposition of the limestones and veins. Worked 

 open-cast. " At Malaken the red clay veins worked for tinstone are proving more 

 and more barren of that ore, while the proportion of copper in the infilling increases." 

 Tlie stuff thrown on the wasteheaps is really rich copper oxide. 



