NO. 2 BIBLIOGRAPHY OF TIN HESS 171 



TASMANIA (Continued) 



1146. . Report on the Renison Bell tin field. 



Geol. Surv., Tasmania, 1906, Hobart, pp. 12. 



Renison Bell tin mine, the chief mine of the Dundas tin-bearing belt, is situated at 

 the northern end of the area. At present worked by optionees, producing ore by 

 sluicing; are driving underground to intersect a large pyrrhotite lode a hundred 

 feet below its exposure in a railway cutting. District is undeveloped. Present price 

 of tin is acting as a stimulus that will lead to working lodes. 



1147. . Geological report on Cox's Bight tin field. 



Geol. Surv., Tasmania, 1906, Hobart," pp. 18, geologic map 1. 



A little known field on the south coast of Tasmania, 36 miles by water from 

 Recherche, and three or four days walk overland. A biotite granite boss of Devonian 

 age, 1% miles in diameter, intruded through quartzite and schist is intersected by 

 veins carrying cassiterite and accessory molybdenite. Tin found here in early '90's, 

 and about 120 tons taken out to 1906. Gives individual descriptions of several claims. 

 Yield, 1 pound to IVz pounds per cubic yard, generally nearer the smaller figure. 

 Gravel 6 feet and more thick. Field restricted. 



1148. . Report on the Bell Mount and Middlesex district (Tasmania). 



Geol. Surv., Tasmania, 1907, Hobart, pp. 1-30. 



At Shepherd & Murphy mine, on Bismuth Creek, a tin-tungsten-bismuth vein occurs 

 in a wollastonite-epidote rock, evidently altered limestone. Vesuvianite, diopside and 

 garnet also occur. Granite or quartz-porphyry supposed to exist close at hand. Topaz 

 occurs in the vein with quartz. The vein cuts Middle Silurian rocks. Also mentions 

 quartz bismuth-tungsten veins at All Nations mine; tin-bearing stockworks in granite 

 and quartz-porphyry, at All Nations and Dolcoath mines; alluvial deposits of gold, 

 tin and tungsten and veins carrying pyrite, galena, molybdenite, " cupriferous 

 quartz," gold and silver occur in the same district. Spodumene is found in one of 

 the veins. 



1148a. . The mineral industry of Tasmania. See No. 1134. 



1149. TWELVETREES, W. H., and PETTEBD, W. F. On the topaz quartz porphyry 



or stanniferous elvan dykes of Mount Bischoff. 



Pap. Proc. Roy. Soc., Tasmania, 1897 (1898), Hobart, pp. 119-128, pi. 1. 



The dikes of Mt. Bischoff are granitic and both feldspar and quartz have been more 

 or less replaced by topaz and to a lesser degree, cassiterite, so that the latter mineral 

 is also secondary. 



1149a. TWELVETREES, W. H., and WARD, L. KEITH. Geological examination of 

 of the Zeehan field. 



Geol. Surv., Tasmania, Bull. No. 7, 1909, Hobart, pp. 25. (Preliminary statement.) 

 Extract: Mg. Journ. Railw. Comm. Gaz., Vol. 87, 1909, London, pp. 532-534. 

 Treated under heads: Introduction; nature of the examination; its scope and 



method; forecast of the forthcoming report; preliminary statement of the results of 



the geological examination. 



1150. ULRICH, G. H. F. A report on Mount Bischoff tin mines, Tasmania, 



with topographical sketch map. 



1874, Launceston, pp. 5. 

 Not available to the authors. 



1151. . Ueber die Zinnmine am Mt. Bischoff in Tasmanien. 



Neues Jahrb. Min., 1877, Stuttgart, pp. 494-497. 



1152. WADDINGTON, H. Tin; its future. 



Mg. Journ. Railw. Comm. Gaz., Vol. 49, 1879, London, p. 1310. 

 Extracts from a report by H. W. F. Kayser on the Bischoff tin mines. 



