200 ECONOMIC GEOLOGY. 



Worlcmg of Collieries, by W. W. Smyth, pp. 97-131. 



Quarries and Building-Ston.^s, by Prof. E. Hull, pp. 132-1 56. Mineral 

 cbaracters of the building-stones in their natural state. Geological 

 position and enumeration of the principal quarries. Examples and 

 illustrations of their use. Quotes analyses and experiments on some of 

 the chief building- stones. 



Iron, by W. M. Williams, pp. 1-47. Describes the conditions under 

 which the iron ores occur. 



Copper, by J. A. Phillips, pp. 77-121. Kefers to the chief copper- 

 minerals. Analyses given. 



Tin, Tin Plate, and Tin Alloi/s, by Walter Grraham, pp. 155-172. 

 Considers the properties of tin and its manner of occurrence in the 

 rocks. A table shows the development of our tin mines from 1818 to 

 1871. 



Zinc, by W. Graham, pp. 173-181. The ores described, with analyses. 



E. B. N. 



Production der Bergwerke und Salzgewinnung aus wasseriger Losung 

 (Salinen) ira Preussischen Staate fiir das Jahr 1875. [Mineral 

 Produce of Prussian States in 1875.] Zeitsch. Berg-, Hlltt. Salinemv. 

 Bd. xxiv. Statist. Theil, p. 21. 



Eeports of the Inspectors of Mines for the year 1875. Pp. xxvii, 

 416. Fol. London. 



See also : — 



Foote, R. B. South Mahratta Country. (Chap, on economic geology) : 

 p. 149. 



Mallet, F. R. Coal-fields of the Naga Hills, Assam : p. 150. 



Prestwich, Prof. J. Water Supply of Oxford : p. 31. 



Williams, J. J. Mineral Resources of Flintshire and Denbighshire : 

 p. 40. 



[Many papers that refer to the practical application of geology, and to the 

 occurrence of coal, metalliferous ores, &c., are noticed under Stratigrapiiical 

 Geology.] 



