166 SMITHSONIAN- MISCELLANEOUS COLLECTIONS VOL. 58 



TASMANIA (Continued) 

 Louis, Henry. See No. 1340. 



. See No. 1525. 



1107. Meredith, C. Verbal remarks on specimens of tin ore from Mount 



Bischoff, Tasmania. 



Pap. Proc. Roy. Soc. Tasmania [monthly notices— June], 1873 [1874], Hobart, 

 p. 21. 

 Not available to the authors. 



1107a. MiLLEN, J. D. Mount BiscliofE tin mining company, Tasmania. 



Austr. Mff. Stand., Vol. 41, Nos. 1C61, 1062, 1900, Sydney and Melbourne, pp. 264, 

 203-294. Illus. (In section of Electrical Record, Vol. 19.) 

 " A description of the hydro-electric power plant, its equipment and operation." 



. See No. 1535. 



1108. Montgomery, Alex. The Blue Tier tin field. 



Geol. Surv. Rep. Tasmania, November, 1889, Hobart. 

 Not available to the authors. 



1109. . The tin mines at the Blue Tier, county of Dorset. 



Geol. Siirv. Rep. Tasmania, January, 1903, Hobart. 

 Not available to the authors. 



1110. Montgomery, Alexander. The mineral resources of Tasmania. 



1894, Hobart, pp. 3-28. 



Tasmania is the third largest tin producer in the world, the value of tin ore raised 

 being greater than all the other minerals of Tasmania put together. The tin deposits 

 may be grouped as : (1) Alluvial. (2) Lodos or veins. (3) Impregnations or stock- 

 works. The veins occur in districts which are composed almost entirely of granite or 

 of sedimentary rocks penetrated by quartz-porphyry dikes. Vein or lode mining has 

 not yet been very successful in Tasmania. Stockworks or impregnations of tin ore, 

 found in several localities are likely to be of very great importance. Mt. Bischoff 

 mine shows a curious combination of all the different types of tin deposits. 



1111. . The mineral industry of Tasmania. 



Eng. Mg. Journ., Vol. 57, 1894, New York, p. 389. 



Good general description of tin deposits. Principal alluvial workinfrs in northeast 

 part of Tasmania, along Ringarooma and George's rivers and their tributaries. 

 Deposits of different ages, miocene to recent. Some of older drifts covered by basalt 

 and worked by underground mining, but most is obtained from shallow workings by 

 ground sluicing. The ore which has been easily worked is about all taken out. 

 Hydraulicking larger and poorer deposits. Thinks they will last for a century. 



1112. . Report on the progress of the mineral fields in the neighbor- 

 hood of Zeehan, viz.: Mackintosh River, Mount Black, Mount Read, 

 Mount Dundas, Mount Zeehan, Stanley River and Mount Heemskirk. 



Rep. Seer. Min. Journ. and Printed Papers of the Parliament of Tasmania. Vol. 33, 

 1895, Hobart, pp. VH-LI. 

 Not available to the authors. 



1113. . The useful minerals of Tasmania. 



Trans. Austr. Inst. Mg. Eng., A^ol. 3, 1895, Adelaide, pp. 224-229. 



The tin deposits of Tasmania are classed as alluvial, Assure lodes and stock- 

 works, and impregnations. Examples of these types may be found at different mines, 

 while at Mt. Bischoff the deposit is unusual, presenting almost all of these known 

 types. The ore is practically confined to the granite regions and their immediate 

 vicinity. 



