THE JURASSIC COAL OF SPITZENBERGEN 91 



Ultimate analyses of the coals referred to are not available in 

 most cases, but a few can be given. They may be tabulated as 

 follows : ^ 



H,0 



1. Fangen ' 4.14 



2. Carbon 7.35 



3. Canon City 6.59 



4. Starkville 0.44 



5. Connellsville 0.89 



The roof at the Fangen mine is a black slate, but throughout 

 it is frozen so that none of it has been taken down. No plant 

 impressions were observed in any of the little fragments that 

 had fallen nor had any been seen by the superintendent or the 

 foremen. 



To secure a complete section of the rocks, to the top of the 

 bluff, fully 1,600 feet, would be extremely difficult owing to the 

 abruptness of the face. If one may determine from a some- 

 what close examination of the loose fragments up to about 400 

 feet, the result of the effort would hardly repay the labor. The 

 softer beds are concealed by debris except in some precipitous 

 portions, while the exposed rocks are flaggy sandstones. Evi- 

 dently, one has here a succession of brown, gray, reddish and 

 yellow flaggy sandstones and sandy shales with apparently 

 some streaks of black shale. But from the palaeontologist's 

 standpoint the detailed section might prove of great interest. 

 Professor Nathorst collected from a ravine near the head of the 

 bay the interesting series of plants, Tcenioptcris, Lycopodites, 

 Baiera, Feildenia and Elatides, which enabled him to determine 

 the age of the beds as Upper Jurassic. These remains were 

 found in a black shale, but they are not confined to that stratum, 

 for Mr. D. H. Morris, accompanying the writer, obtained among 

 other specimens a block of sandstone with Tcenioptcris from a 



1 No. 2 is by C. E. Munsell, yi?//?'. Amer. Chevi. Soc, xiii, 4. Nos. 3 and 4 

 by R. C. Hills, Min. Res. U. S., 1892, p. 362. No. 5 by J. L. Lilienthal, un- 

 published, communicated by Prof. J. F. Kemp. The writer will present the results 

 of studies upon this matter and others bearing on the variations in coal at a later 

 time. 



