MINERALS FOR THE PARIS EXHIBITION.—GILPIN. 249 
presented for consumption. These coals are largely used for 
steam purposes, especially in locomotives, they are also good 
coking and domestic coals. In recent communications to the 
Institute I have given a number of analyses of these coals, 
showing the increase of their steam values, ete. as they have 
been followed to the dip. 
The Dominion Coal Company exhibited the various forms of 
round, run of mine, slack, pea, nut coals, ete. required by the 
trade. This company also presented a column of coal, a section 
of the Phalen seam, which attains a thickness of nine feet. This 
column is to stand by a similar one from British Columbia, an 
illustration of the resources of Canada on the Pacitic and on the 
Atlantic. In my last paper I drew attention to the interesting 
diminution in ash and sulphur in the Phalen seam as it was 
followed away from its outcrop. I also gave a summary of the 
tests of coal made at Glassport, Pa., U.S. A. I now give, as an 
interesting comparison, the results of similar tests of the Phalen 
and Hub seams made at the Solway ovens, in Syracuse, New 
York, U.S. A. Owing to rainy weather the car loads were 
saturated with moisture. Allowing for the moisture the sample 
of the Phalen seam weighed 405 tons, and that from the Hub 
seam weighed 307 tons. There were obtained from these coals 
respectively 302 tons, 74.68 per cent; and 224.74 tons, 72.37 per 
cent, of dry coke and breeze. 
The Phalen seam yielded 11,012 cubic feet of gas per long 
ton. Of the gas 55.47 per cent was used under the ovens. The 
average calorific power of the gas was 571.85 B.T. U. The 
average illuminating value of the gas, with a fishtail burner was 
9.9 candle power, with a Welsbach burner, 54.34 candle power. 
The following is the average analysis of the gas :— 
Carbon dioxide....2.7 per cent.| Marsh gas ......32.3 per cent, 
luminants..4.. ..2.9 ns Diy drogenw.tes aot 4 
ORIGEM ee zo.) Ld Nitropen. 4.42 «; SO ee ie 
Carbon monoxide..5.8 “ = 
Rotaly. 22.5 1000 
