rAMMLER.l COKING TESTS. 123 
This test was made on a charge of 9,000 pounds of unwashed coal, 
drich was burned for 43 hours. It produced some small pieces of 
oke, mixed with charred coal and ash. The coal is too high in- ash 
L5.95 per cent) and sulphur (4.14: per cent) to produce a coke lit for 
last-furnace use. 
Illinois No. ( 2. — Slack coal from the same mine as No. 1. 
This coal was washed (p. 62) before charging into the ovens, reduc- 
ig the ash to 9.19 per cent. The amount of coal charged was 9,000 
'Oimds, which after burning 61 hours yielded 3,389 pounds of mixed 
ard and soft coke and 352 pounds of breeze and ash. The coke con- 
lined 20.18 per cent of ash and 2.75 per cent of sulphur. 
Illinois No. 3. — Run-of-mine coal from mine No. 3, Southern Illinois 
)oal Mining and Washing Company, near Marion, 111. 
Two charges were made of this coal, one unwashed, the other washed, 
'he unwashed charge of 9,000 pounds was tested for 43 hours. The 
oal lay dead in the oven, burning on top, but did not coke. The 
nwashed coal contained 10.59 per cent ash. The washed charge car- 
led 5.86 per cent ash, being a reduction of nearly 50 per cent (p. (yd). 
'his charge of washed coal consisted of 13,000 pounds and was burned 
E) hours, yielding 6,378 pounds of coke, which was very brittle and 
hich broke up in handling into fine-fingered pieces. The breeze and 
ih in this oven weighed 834 pounds. 
Illinois No. 5. — Grade No. 5, washed slack from mine No. 1, Donk 
ros. Coal and Coke Company, Collinsville, 111. 
Three tests were made of this coal, as it was reported that it had 
3en coked successfully in pits. All of the coal was washed before 
larging and each charge was burned for 42 hours. In the first test 
le coal was charged as it was received, but no coke was produced, 
the second test the coal was rewashed through the New Century 
(p. 67), but it was charged wet and the oven was chilled and the 
>al would not burn. In the last test the oven was heated by an extra 
large of coal and the charge was made in a red-hot oven, but even 
ith this precaution the coal would not coke. In each instance the 
al burned out on top, but otherwise la} 7 dead in the oven and would 
)t coke under existing conditions. All of the Illinois coals are too 
gh in sulphur to make good blast-furnace coke. 
fndiana No. 1. — Run-of-inine coal from Mildred mine, J. Woolley 
)al Company, Mildred, Ind. 
This coal was crushed and washed (p. 64). The charge consisted 
8,000 pounds and was burned for 40 hours. It produced 3,473 
unds of fair coke of medium weight, bright gray, but brittle and 
,ther high in sulphur. The breeze and ash amounted to 368 pounds. 
Indian Territory No. 1. — Lump and slack coal from mine No. 1, 
hitehead Coal and Mining Company, Henryetta, Ind, T. 
