424 THE CANADIAN NATURALIST. [Vol. viii. 



stripes of water in the body of the Gulf Stream. That this 

 arrangement exists in the Labrador current is rendered probable 

 from the habits of innumerable, indigenous and non-migratory 

 schools of fish, which winter, not only in the ice-encumbered 

 seas on the Atlantic coast of Newfoundland, but also throughout 

 the sea area confronting the coast of Labrador, where the sea 

 not unfrequently freezes in one unbroken sheet, ten to thirty 

 miles out from the nearest land. This arrangement would also 

 be in accordance with the temperature of zones observed by 

 Scoresby in the Arctic Sea, in the Gulf of St. Lawrence by Dr. 

 Kelly, and in the Baltic Sea by Professor F. L. Ekman, thus 

 comprehending closed as well as open seas. 



ON THE OCCURRENCE OF APATITE IN NORWAY. 



By Messrs. W. C. Broegger and H. H. Kensch. 



[Translated and abridged from the " Zeitschrift der Deutschen Geologischen 

 Gesellschaft " ; Vol. 27, Part 3.] 



The Norwegian deposits of apatite, some of which had for 

 years yielded a large quantity, had been but little studied up 

 to the year 1874. This account is the result of a six-weeks' 

 journey during July and August, 1876, made at the expense of 

 the government, in order to study in detail some of the most 

 important deposits. 



Apatite in Norway has up to the present time been found 

 especially in veins in the primary range of the southern coast 

 between Langesundsfjor and the town of Arendal, and also at a 

 few points to the north of the old mining town of Kongsberg in 

 the district of Snarum. 



In proceeding to the description of the several deposits (more 

 than twenty in all) visited by us, let us observe that we shall 

 arrange them according to the nature of their respective rocks. 

 In this way the remarkable connection that undoubtedly exists 

 in our opinion, between the gabbro and the Norwegian deposits 

 of apatite, will be at once evident to the reader. 



We will first describe the veins intersecting the gabbro ; and 

 then those traversing the crystalline schistose rocks of the pri. 

 mary range and partially the granite, commencing with those 

 that occur in the immediate neighbourhood of the gabbro. 



