44 WASHING, COKING, AND CUPOLA TESTS. 
West Virginia Nos. 13 and 14. — Test 23: Light-gray and silvery color; metallic ring; 
cell structure medium; breakage good; long, large, heavy pieces. 
West Virginia No. 14-— Test 20: Light-gray and silvery color; metallic ring; cell struc- 
ture a little large; breakage good ; long, large, heavy pieces; good, hard coke. 
West Virginia No. 15. — Test 36: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure good; breakage good; long, large, pieces; good, 
heavy coke; high sulphur. 
Test 43: Light-gray and silvery color; metallic ring; cell structure a little small; 
breakage good; long, large pieces; hard, heavy coke; sulphur high. 
West Virginia No. 16 A.— Test 73: Light-gray and silvery color; much deposited car- 
bon; metallic ring; cell structure a little large; breakage somewhat marred by 
cross fracture, but pieces of good size; good, hard, heavy coke. 
West Virginia No. 16 B. — Test 45: Cell structure good; breakage good; long, large 
pieces; good, heavy coke. 
Test 48: Light-gray and silvery color; much deposited carbon; metallic ring; cell 
structure a little large; breakage somewhat marred by cross fracture, but pieces 
of good size; somewhat brittle; washing does not appear to improve coke, on the 
contrary the coke from the raw charge is decidedly better. 
Test 49: Light-gray and silvery color; metallic ring; cell structure large; breakage 
somewhat marred by cross fracture; coke brittle; washing does not appear to 
improve physical properties of coke; sulphur and ash somewhat lowered. 
West Virginia No. 17. — Test 60: Light-gray and silvery color; metallic ring; cell struc- 
ture good; breakage good. 
West Virginia No. 18.— Test 74: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure good; breakage somewhat crosswise; coke brittle; 
good, hard, heavy coke. 
Test 78: Light-gray and silvery color; metallic ring; cell structure good ; breakage 
somewhat crosswise; coke brittle; good, hard, heavy coke; no appreciable differ- 
ence in yield between the crushed and uncrushed charges. 
West Virginia No. 19.- — Test 79: Dull-gray color; some silver; cell structure small, 
rather dense; breakage good ; poor, light-weight coke. 
Test 83: Dull-gray color; some silver; cell structure small ; breakage good. This 
oven was burned with a smaller draft and coke was much heavier and better 
than that from test 79. 
West Virginia No. 20. — Test 80: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure small,- not dense; breakage good; long, large, 
pieces, somewhat brittle; good, hard, heavy coke. 
Test 84: Light-gray and silvery color; metallic ring; cell structure good ; breakage 
marred by cross fracture, but pieces of good size; washing does not materially 
benefit ; on the contrary, the coke is not as good as that from raw coal. 
Test 87: Light-gray and silvery color; much deposited carbon; metallic ring; cell 
structure a little small; breakage very irregular, but pieces of good size; de- 
creased percentage of coke and increased percentage of breeze probably due to 
fact that coke was not crushed. 
Test 92: Light-gray and silvery color; metallic ring; cell structure small, not 
dense; breakage somewhat marred by cross fracture, but pieces of good size; 
good, heavy coke. 
West Virginia No. 21 . — Test 82: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure good; breakage good; long, large pieces; good, hard, 
heavy coke. 
Test 91: Light-gray and silvery color; much deposited carbon; metallic ring; cell 
structure large; breakage very irregular and brittle; washing does not materially 
improve coke, on the contrary the coke from raw charge is decidedly better.. 
