rAMMLER.] COKING TESTS. 125 
Iowa No. 3. — Lump coal from mine No. 4, Gibson Coal Mining 
Company, Altoona, Iowa. 
The charge in this test consisted of 8,000 pounds of washed (p. 69) 
oal, which was burned for 43 hours. It yielded 3,336 pounds of Une- 
ntered brittle coke that was high in sulphur and ash, and 585 pounds 
f breeze and ash. 
Iowa No. 4. — Lump coal from mine No. 3, Centerville Block Coal 
Company, Centerville, Iowa. 
The coke produced in this test was of the same general character as 
hat obtained from Iowa No. 3, except that it was not quite so high in 
ither sulphur or ash. The charge consisted of 8,000 pounds of 
cashed (p. 69) coal, which was burned for 40 hours, producing 3,722 
ounds of coke and 426 pounds of breeze and ash. 
Iowa No. 5. — Run-of-mine coal from Inland mine No. 1, Inland 
'uel Company, Chariton, Iowa. 
The result of this test, made on 9,000 pounds of washed (p. 70) coal, 
nd burned 66 hours, was a mixture of unburned coal, charred coke, 
nd ash. 
All of the Iowa coals tested are too high in sulphur to produce 
last-furnace coke, and as the sulphur occurs largely as gypsum it 
in not be removed by washing. The ash is also high in relation to 
le fixed carbon. 
Kansas No. 1. — Run-of-mine coal from mine No. 10, Western Coal 
id Mining Company, Fleming, Kans. 
In making this test a charge of 11,300 pounds was made, and this 
as burned for 120 hours. At the end of the period the charge was 
>und to be sintered on top, while under this sintering was a thin layer 
! light coke, with the remainder of the coal in the oven uncoked or 
jrned. 
Kansas No. 2. — Lump, nut, and slack coal from mine No. 11, West- 
fn Coal and Mining Company, Yale, Kans. 
{Che behavior of this coal in the oven was similar to that of Kansas 
. 1, showing no tendency to coke, although the charge of 9,125 
inds was burned for 159 hours. 
Kansas No. 3. — Run-of-mine coal from mine No. 9, Southern Coal 
1 Mercantile Company, Scammon, Kans. 
This charge consisted of 7,100 pounds of unwashed coal, which was 
lirned for 96 hours. It coked for about 12 inches from the top, 
tjiile the remainder was simply charred coal and ash. 
' {Kansas No. J±. — Lump coal from Atchison Coal Mining Company, 
^chison, Kans. 
l?his coal showed more of a tendency to coke than any of the other 
I pis from Kansas. The charge, consisting of 10,000 pounds, was 
^rned for 67 hours. It yielded 5,213 pounds of hard but brittle coke 
i|d 432 pounds of breeze and ash. The coke is, however, too high in 
