﻿Prof. How on the Mineralogy of Nova Scotia. 



267 



analysis*, one only has had its ultimate composition determined, 

 that, namely, found at Springhill, Cumberland county. All the 

 true coals of the province are bituminous, and they would, no 

 doubt, give results comparable with those from the Springhill 

 coal below and the bituminous coals now selected as represen- 

 tatives from among those analyzed by myself during the British 

 Admiralty Coal-Inquiryf. 



Bituminous coals. 



Percentages. 



Ratio of carbon to 

 hydrogen. 



Authority. 



Car- 

 bon. 



Hydro- 

 gen. 



Oxy- 

 gen. 



By ana- 

 lysis. 



On deduct- 

 ing H=0. 



Nova- f Springhill. \ 

 Scotian. \ Cumb. co. J 



( Duffryn 



Welsh. \ Newydd 



1 Ebbw Vale ... 



«•**■ tez mo . Mth :. 



7200 



88-26 

 8471 



8978 

 79-85 

 79-58 



502 



4-66 

 576 

 515 

 5-28 

 5-50 



726 



0-60 

 3-52 



0-39 

 8-58 

 8-38 

 4-37 



6 48 



100:6-97 



100 : 5-28 

 100:679 

 100:5-73 

 100:661 

 100:693 



100:572 



100:5-18 

 100:6 28 

 100:5-67 

 100:5-27 

 100:5-73 



f Woodhouse 

 t &Jeffco;:ke 

 II . How. 



>> 



>) 

 »> 



^■{l^Z™.::. 



8170 

 73-52 



617 

 5-69 



100:7-55 

 100:773 



100:6-88 

 100:6-63 



Semibituminous Coal. — On the line of railway between Truro 

 and Pictou, about twenty miles from the former town, a curious 

 " vein " is found between slaty walls, consisting of black lustrous 

 mineral formed into a sort of network by the intersection of nu- 

 merous cross veins of fibrous ferriferous carbonate of lime, the 

 whole being two or three inches thick. The black mineral looks 

 something like graphite, is rather hard, H. = 2*5, and very brittle; 

 ignited, it gives a luminous white flame, exfoliates, smells strongly 

 of sulphurous acid, and burns with some difficulty to a reddish 

 ash. In a closed tube it does not melt, scarcely changes its 

 form, gives but a small quantity of smoke and oil; the fumes are 

 very acid. For the carbon- and hydrogen-determinations which 

 follow I am indebted to Professor Anderson. Ultimate analysis 

 gave : — 



Carbon 85-33 



Hydrogen 4- 99 



Sulphur, nitrogen, and oxygen . 4*70 

 Ash 4-98 



100-00 



Proximate analysis afforded me : — 



Volatile matters 

 Besidue, or " coke " 



10-90 

 89-10 



100-00 



* Loc. cit. p. 33, and Dawson's ' Acadian Geology.' 



t First Parliamentary Report by Delabeche and Playfair. 



