CK.] 
WASHING TESTS. 
Analyses showing effect of washing Towa No. / coal. 
69 
ih.... 
ilphur 
\\ ashed coal 
lor coking. 
10.25 
4.<)1 
Iowa JVo. %, — Run-of-mine coal from mine No. 6, Mammoth Vein 
oal Company. Hamilton, Iowa. 
About 5i tons of coal were washed for a coking test. The reduc- 
on of impurities effected by washing- was not great, as shown by the 
Mowing analyses: 
Analyses showing effect of washing Iowa No. 2 coal. 
p.... 
ilphur 
Car sample. 
Washed coal 
[or coking. 
10.28 
3.93 
Iowa JVo. 3. — Lump coal from mine No. 4, Gibson Coal Mining 
>mpany, Altoona, Iowa. 
About 4i tons of this coal were washed .for a coking test. The 
tprovement in the quality of the coal effected by washing is shown 
the following analyses: 
Analyses showing effect of washing Iowa No. 3 
coal. 
Car sample. 
Washed coal 
for coking. 
1 
14.01 
6.15 
8.03 
phur 
4.55 
Iowa JVo. b. — Lump coal from mine No. 3, Center ville Block Coal 
mpany, Centerville, Iowa. 
i charge consisting of about 4i tons of this coal was washed for 
ring purposes. The results were not so satisfactory as those 
ained on other samples from this State. The analyses are given 
ow: 
Analyses showing effect of washing Iowa No. 4 coal. 
Car sample. 
10.96 
4.26 
Washed coal 
for coking. 
7. 14 
)hur 
3.59 
