248 SOME ANALYSES OF NOVA SCOTIA COALS, 



North Slope North Seam : 



Moisture T625 



Volatile Combustible Matter, Fast Coking. 33'401 



Slow " . 28-672 



Fixed Carbon Fast " . 60701 



Slow " . 65-431 



Ash 4-272 



Sulphur 783 



Theoretical Evaporative Power 8.99 



The analysis of the Black seam made in the year 1878 has a 

 complete sample column of coal representing the whole seam as 

 then worked. A companion column was presented to the 

 museum of the Geolegical Survey at Ottawa. The section of the 

 seam was as follows : 



Feet. Inches. 



Top coal, a little coarse 1 7 



Coal, good 1 2J 



Fire clay parting 0| 



Coal, good 8 



Coal, good 1 6 



Fire clay parting 6 



Coal, a little coarse 9 



Coal, good 11 



Fire clay parting 1 



Coal, good 2 2 



Coal, good, one inch soft 3 



Coal, coarse 8J 





Total 10 4J 



I need not repeat here the minute description given then of 

 the various layers. It m&y be stated that the coal of the sample 

 was bright, with occasional calc-spar and pyrites films, with 

 somewhat irregular fracture. In the vicinity of the point in the 

 mine where the sample was taken a large amount of coal was 

 beautifully iridescent, recalling that splendid mineral Chry- 

 socolla. Samples of this when analysed with the means at my 

 disposal did not give a reason for the coloring. It may have 

 been due to some process of oxidation of iron pyrites. 



