Geology and Mineralogy. 307 



It is stated that in 1905 some thirty-seven parties were at work 

 in the field, and in 1906 a somewhat smaller number. The lead- 

 ers.ot" the different parties give in brief their individual reports, 

 and a survey of them serves to show the great variety of work in 

 progress. Among these may be mentioned one by Dr. Robert 

 Bell on the Cobalt Mining District, giving a brief account of the 

 geology of the region, accompanied by striking illustrations of 

 the silver nuggets which have been produced. 



The Survey has also issued sheets Nos. 59, 60, 61, 62, 63, 64, 

 65, 74, 75, 76, 82, 83 of the Nova Scotia geological map. Fur- 

 ther, the following special reports have appeared : 



Report on the Chibougamau Mining Region in the Northern 

 Part of the Province of Quebec; by A. P. Low. Pp. 61, with 

 one colored map. 



Preliminary Report on the Rossland, B. C, Mining District ; 

 by R. W. Brock. Pp. 40. 



2. The Cruise of the Neptune. Report on the Dominion 

 Government Expedition to Hudson Bay and the Arctic Islands. 

 1903-1904 ; by A. P. Low. Pp. xvii, 355. Ottawa, 1906.— This 

 report contains a narrative of the voyage of the Neptune during 

 1903-04, to the northern parts of Hudson's Bay and the north- 

 eastern Arctic islands, extending as far as Cape Sabine in Smith 

 Sound, in latitude 79°. The scientific staff was led by Dr. A. P. 

 Low, who was commander and geologist. The general account 

 of the voyage, illustrated by numerous excellent reproductions 

 from photographs, is most interesting. To this are added chap- 

 ters discussing the Esquimos, the geology, the whaling, and the 

 navigation of Hudson's Bay. The lists of scientific collections 

 are given in appendixes and a large pocket map is also added. 



The two chapters devoted to a summary of the geology of the 

 northeastern coast of America and the Arctic islands deserve 

 careful reading. The account given is based chiefly upon the 

 observations made by the Neptune, although full credit is given 

 to the necessarily fragmentary and imperfect observations of the 

 earlier explorers. The region covered is remai-kable as giving a 

 nearly continuous series from the Archean to the Tertiary, while 

 various phases of the glacial age are represented as well as Post- 

 glacial deposits. It is stated that : 



" The Paleozoic rocks are well represented on the islands by 

 thick deposits extending upwards in a continuous series from the 

 Cambro-Silurian to the upper beds of the Carboniferous. Rocks 

 older than the Galena-Trenton are only found in the northern 

 part of Ellesmere island, where a series of beds appears to con- 

 nect the Upper Huronian formations with the lower members of 

 the Cambro-Silurian. Mesozoic rocks are found on the northern 

 Parry islands, on the Sverdrup group and on the western and 

 northern sides of Ellesmere island. Tertiary formations occur on 

 the northwestern islands, on the northern part of Ellesniere, as 

 well as on the northern and eastern parts of Baffin island. 



The former presence of a continental ice-cap is attested along 



