NEW MINERAL DISCOVERIES IN NOVA SCOTIA.—GILPIN. 83 
In an oven 18 inches wide, if the coke be not required for 
blast furnaces, the time of coking would be about 23 hours. 
The following summary shows the results obtained per long 
ton from a series of charges coked under usual working condi- 
tions at Glassport :— 
Lbs. Per cent. 
large coke >1” — 66.69 p. cent y 
Coke, al al Wy pee 164 4 1,593.4 Mets 
dust = <4 ©2580). 4 § 
1h ae SeoubE POGUE P Obama ao’ sore ooe rae 15.7 3.38 
Ammonia (1.373 per cent sulphate) ........ 7.6 34 
Gas, total, 10,390 cu. ft. of .466 sp. gr......... 3638.0 16.43 
Sulphur compounds in gas :— 
Eiydnorenmoulplide t's 224s < tas aaewee« sees 10.8 48 
SirbonpDiswlphidesdis.2%)5.. 6/185 Beate a cacao 1.6 O07 
Gas Liquor and Loss, by difference .......... 182.9 8.17 
AR crba Sot acrevare eyata,ce 10 ote emmjatinvanaie hota 2,240.0 100.00 
Of the gas produced, 49.5 per cent was “ surplus” gas, that is, 
gas not required for heating the ovens. This had the following 
composition :— 
Oletmesn@r Ele. vs sas custe tae eres Sane ates 5 
JU Leyes oe see Cols aaa ee os oriniono mcm ab Od 38.7 
Carbon, monoxide, ‘CiOy. is Saeco. 3k 6.1 
Carbonrdioxide:C Oi see sgt css eas hae ae eri 
Wisc crore OG RS. at Cyan ea ieee care gr etayess ate 3 
IN flGR Oo ea IN cea Ocoee ari Rare, Eto antoaeaenny Seach fl 
bliveneoenns: elias + sere eae om onary 115 <0 38.4 
100.0 
Its calorific power, the hydrogen burnt to water, was 686 
B. T. U., its candle power 14.7, and its specific gravity, .51. 
The coke contains in addition to the fixed carbon, volatile matter,, 
1.27; ash, 8.91; phosphorus, .0041; moisture, 3.67. The ash 
contains 27.71 per cent of silica, 13.04 per cent of aluminia, and 
50.60 peroxide of iron, with small quantities of alkalies and 
alkaline earths. 
