REVIEWS 913 



igneous. Intrusive in them are undoubted igneous rocks — 



gabbro, anorthosite-gabbro, augite-syenite, syenite and dikes of 



syenite and diabase. 



C. K. Leith. 

 Madison, Wis. 



The Summary Report of the Geological Survey Department of Canada 

 for the year 1901 is a paper-bound volume of 270 pages, giving a 

 concise outline of the work done during the year. The volume is 

 issued in order to give to the public, without delay, the results of the 

 year's investigations in different parts of the Dominion. The rapidly 

 increasing mining industry of the country makes it very desirable that 

 the information in possession of the Survey should be immediately 

 available, whereas the full annual reports are, as a rule, two or more 

 years behind the field work. During the last three years the Canadian 

 Survey has lost a number of its men by death and resignation. The 

 death of Dr. G. M. Dawson, late director, was a severe loss, and the 

 resignation of such men as J. B. Tyrrel, A. P. Low, J. McEvoy and 

 R. W. Brock leaves places which the younger appointees are not yet 

 able to fill. Dr. Robert Bell, formerly deputy director, has been 

 appointed acting director. The present staff numbers fifty-four. 



During the year 1901 thirty-one parties were in the field, and work 

 was done in each of the seven provinces and in the territories of 

 Alberta, Yukon and Keewatin. R. G. McConnel and Joseph Keele 

 continued the work in the Yukon field. Considerable searching has 

 been done in the hope of finding the lodes from which the gold of the 

 placers was derived. Auriferous quartz veins cut the igneous and 

 clastic schists which are so abundant in the Yukon valley. As a rule, 

 the veins, though numerous, are too small and discontinuous to 

 warrant mining operations. The schists are also auriferous in places. 

 R. A. Daly acted as geologist with the Canadian commission 

 co-operating with the United States commission in locating the British 

 Columbia section of the international boundary. The predominant 

 rocks of the Coast Range were found to be metamorphic sediments, 

 of which but few strata were fossiliferous. The mountain forms are 

 regarded as erosional rather than constructional. Erosional features 

 characteristic of the work of Alpine glaciers — cirques, cols, rock 

 basins, ampitheaters, and deep re-entrants — are abundant. The 

 existing glaciers are small, and there is no indication of general 

 glaciation having prevailed in the belt. R. W. Brock worked in the 



