312 Notices respecting New Books. 



with pressure forcing the water seven feet above the surface of the 

 ground. 



Dr. Prestwich considers that with a good bore-hole in the Lower 

 Greensand of the Godalming and Hindhead district, a large supply- 

 is obtainable, as he originally anticipated. Also that the same 

 strata in the district westward of Leatherhead and Windsor are 

 available for a good water-supply. 



Geological Survey of Canada. — Annual Report, New Series, Vol. VI. 

 Reports A (1892), A (1893), J, Q, R, S. 1892-93. 8vo. Ottawa. 

 1895. 



The Reports " A," " A " summarize the operations of the Geo- 

 logical Survey for the years 1892 and 1893 respectively. The 

 Report " J," by F. D. Adams, treats of the geology of a part of 

 Central Ontario, especially noticing the metallic ores of the dis- 

 trict. The geological structure of South-western Nova Scotia is 

 the subject of the Report " Q," by L. W. Bailey, with a map. 

 Chemical examinations of Canadian rocks and minerals are detailed 

 by G. Ch. Hoffman in Report " R," resulting in useful determi- 

 nations and assays of numerous rocks, ores, and minerals, including 

 coal, lignite, lava, granite, limestone ; ores of iron, nickel, cobalt, 

 gold, and silver; also natural w T aters, clays, and miscellaneous 

 substances. 



In Report " S " E. D. Ingall and H. P. H. Brumell give the 

 statistics of mines and mineral produce, in the Dominion, for 1892, 

 under twenty-seven headings, including mineral waters, petroleum, 

 and natural gas, with eleven plates of appropriate statistical dia- 

 grams and plans, illustrative of annual produce and value, especially 

 of gold and silver. 



Of the most valuable of the Canadian metallic products, for 1892, 

 are, of metals— Nickel valued at $1,399,956; Gold, $907,601 ; and 

 Copper, $826,849; of other materials— Coal $7,184,510; Petro- 

 leum $982,489 ; Bricks $1,251,934. The total value of the mineral 

 production in 1892 was $18,000,000. In general these products 

 were of less value than they had been in 1891. 



The exports of minerals and mineral products in 1892 were 

 valued at $5,229,950. Of the destinations of these materials the 

 chief (in order) were the United States, Great Britain, and New- 

 foundland. Tables of imported minerals and mineral products are 

 also supplied. 



A good Index is appended, which refers to all the Reports. 



These reports evidently are, in the first place, the result of 

 careful and conscientious work in the field and the office; and, 

 secondly, they are of considerable value both to the inhabitants of 

 Canada and to scientific and commercial people, who may have at 

 heart the interest of geology and mineralogy, or that of the great 

 Colony itself, or both, 



