OOKING TESTS. 48 
Virginia No. 1. — Test 64: Light-gray color; metallic ring; cell structure good; break- 
age somewhat marred by cross fracture, but pieces of good size; hard, heavy 
coke, not dense. 
Test G5: Light-gray and silvery color; much deposited carbon; cell structure 
medium; metallic ring; breakage somewhat marred by cross fracture, but 
pieces of good size; good, hard coke. 
Test 67: Light-gray and silvery color; much deposited carbon; cell structure 
medium; metallic ring; breakage somewhat marred by cross fracture, probably 
due to uncrushed slate; lower yield of coke and higher amount of breeze proba- 
bly due to fact that coal was not crushed. 
Test 68: Light-gray and silvery color; much deposited carbon; metallic ring; 
cell structure medium; breakage somewhat marred by cross fracture, but pieces 
of good size; large amount of breeze and lowered percentage yield probably 
due to fact that coal was not crushed. 
Test 77: Light-gray and silvery color; much deposited carbon; metallic ring; 
cell structure good; breakage somewhat marred by cross fracture, but pieces 
of good size; good, hard, heavy coke; increased yield of coke and decreased 
amount of breeze probably due to fine grinding. 
Virginia No. 2.— Test 63: Light-gray and silvery color; metallic ring; cell structure 
a little large; breakage somewhat marred by cross fracture, but pieces of good 
size. 
Test 69: Light-gray and silvery color; much deposited carbon; metallic ring; 
cell structure medium; breakage good; long, large pieces, somewhat brittle; 
decreased yield of coke and increased amount of breeze probably due to fact 
that coal was not crushed. 
Test 70: Light-gray and silvery color; metallic ring; cell structure large; break- 
age somewhat marred by cross fracture, but pieces of good size; good, hard 
coke, somewhat brittle; washing does not seem to benefit it materially. 
Virginia No. 3. —Test 61: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure small; breakage good; long, large, heavy pieces; 
very heavy coke. 
Test 88: Light-gray and silvery color; much deposited carbon; metallic ring; 
cell structure small; breakage good; good, heavy coke; decreased yield of coke 
and increased amount of breeze probably due to fact that coal was not crushed. 
Virginia No. 4. — Test 62: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure good; breakage, long, thin pieces; light weight: 
fingered coke. 
Virginia No. 6. — Test 181: Light-gray color; cell structure small; dense coke; break- 
age very irregular; pieces of various sizes; high sulphur. 
Test 184: Light-gray and silvery color; much deposited carbon; cell structure 
small, but not dense; breakage, irregular pieces of various sizes; washing 
reduces ash and sulphur and improves quality of coke. 
Washington No. 2. — Test 135: Light-gray color; some deposit of carbon; fair ring; 
cell structure small; breakage, long-fingered pieces, very brittle; dense coke- 
high ash. 
West Virginia No. 4 B. — Test 40: Light-gray and silvery color; much deposited carbon; 
metallic ring; cell structure good. 
Test 44: Light-gray and silvery color; much deposited carbon; metallic ring; cell 
structure good ; breakage good ; long, large pieces. 
Test 46: Light-gray and silvery color; metallic ring; cell structure good: breakage 
somewhat marred by cross fracture, but pieces of good size: high yield of coke 
and decreased amount of breeze probably due to fine grinding. 
West Virginia No. 13.— Test 21: Light-gray and silvery color; metallic ring; cell struc- 
ture good; breakage good ; long, large, heavy pieces. 
