TESTS MARYLAND AND MASSACHUSETTS. 
133 
WASHING TEST. 
Test 130, Maryland No. 1. 
Size as shipped, run of mine. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
Raw coal , pounds. . 45, 500 
Washed coal do 37, 450 
Refuse do 8, 050 
ANALYSES. 
Test 130. 
Raw coal. 
Washed 
coal. 
2.33 
16.11 
68. 43 
13. 13 
1.49 
3. 67 
Vsh 
10.61 
1.09 
COKING TESTS. 
Test 50, Maryland No. 1. 
Size as shipped, run of mine. Size as used, 
finely crushed. Raw. Duration of test, 36 hours. 
Remarks.— No coke produced. 
Test 54, Maryland No. 1, washed. 
Size as shipped, run of mine. Size as used not 
crushed. Duration of test, 48 hours. 
Remarks. — No coke produced. 
Test 58, Maryland No. 1, washed. 
Size as shipped, run of mine. Size as used, 
finely crushed. lOpercent pitch added. Duration 
of test, 54 hours. 
Coal charged pounds. . 8, 000 
Coke produced do 4, 650 
Breeze produced do 565 
Coke produced per cent . . 58. 13 
Breeze produced do 7. 06 
Total percentage yield 65. 19 
Remarks.— Dull-gray color. Very poor coke. 
Soft and dense. Breaks in large and small chunks. 
ANALYSES. 
Test 58. 
Coal. 
Coke. 
4.35 
17.81 
68. 86 
8.98 
1.09 
0. 27 
.88 
87. 47 
Vsh 
11.38 
.95 
MASSACHUSETTS NO. 1. 
Peat briquettes from bog near Halifax, Plymouth County, Mass. They were furnished 
>y Prof. C. L. Norton, of the Massachusetts Institute of Technology, Boston, Mass., and 
hipped under the supervision of J. S. Burrows. 
This sample consisted of a small amount (less than 5 tons) of peat which had been ma< er- 
,ted and pressed into bricks and then dried, and it was impossible to run a test of sufficient 
?ngth to eliminate the factor of uncertainty. It was demonstrated, however, that a satis- 
actory gas could be obtained, and no trouble was experienced in manipulating the fuel 
>ed or in maintaining the load, but owing to the small supply of peat it was necessary to 
nake the foundation of the fuel bed out of another fuel— Illinois coal. Considering this 
act and that the amount of peat furnished made it possible to conduct a test of only 
line hours' duration, it is possible that the results as given below are somewhat erroneous. 
