ECONOMIC GEOLOGY. 193 



Anon. Iron Mines of Cleveland. South Cleveland and the Iron 

 Trade. Duration of the Cleveland Iron Fields. Iron^ n. s. vol. vii. 

 p. 678, vol. viii. pp. 553, 614. 



Historical, statistical, and in part geological. 



. Iron in Tennessee. Iron, n. s. vol. viii. pp. 646, 710, 746, 



810. 

 Statistics of production, and description of mineral districts. 



. Minerals at the Centennial Exhibition (Philadelphia). Iron, 



' n. 8. vol. viii. pp. 677, 678. 



Notice of minerals, rocks, and ores exhibited. Relates chiefly to 

 America. 



. [The Mining and Metallurgical Produce of Austria in 1875.] 



Oest. Zeit. Berg- Hutt. vol. xxiv. p. ^93. (Abstract in Pi'oc. Inst. 

 Civ. Eng. vol. xlvi. pp. 356-358.) 



. Progress of !Mining in Russia in 1875. Iron, n. s. vol. viii. 



p. 547. (From Berg- Hutt. Zeitung.) 



Artesian AVells in Spain. La Gaceta InchistriaJ, no. 20. 



(Abstract in Proc. Inst. Civ. Eng. vol. xlvii. pp. 356, 357.) 

 Descri^jtion of wells in Valencia and Murcia. 



Bell, R. Mining in Canada in 1875. Iron, n, s. vol. viii. pp. 6, 41, 



229. 

 Notes on mineral districts, "^ith statistics. Gold, silver, copper and 

 lead, iron. 



Bensusan, S. L. Facts in American Mining. Trans. R. Soc. N. S. 

 Wales, vol. ix. pp. 73-85. 



Divides the subject under following headings : — (1) Mode of occur- 

 rence of lodes, veins, &c. (2) Methods of gold mining. (3) Treat- 

 ment of the metals. (4) Loss of gold. (5) Statistics. References 

 are made to Australian localities by way of illustration. R. E., Jun. 



Bilharz, 0. The Zinc-Ore Deposit at Moresnet (Yieille Montague). 



Jiev. Univ. Mines, vol. xl. pp. 235-239. (Abstract in Froc. Inst. 



Civ. Eng. vol. xlvii. pp. 394-396.) 



Occurs in Carboniferous Limestone, here generally a dolomite. The 



ore near the surface is carbonate, but changes in depth to hydrated 



silicate. W. T. 



Blair, W. N. On the Ihiilding Stones of Otago. Trans. N. Zealand 



Inst. vol. viii. pp. 123-166. 

 The sections of geological interest are : — <* On the Building Stones,'' 

 pp. 124-148 ; and ♦' Roofing Materials," pp. 162-164. 



Blanchard, P. Sulla scoperta della Cassiterite a Campiglia Marittima. 

 1870. 



