Fuels.

Specific Gravity.

Weight of One Cubic Foot.

Volume of One Ton, Heaped.

Solid.

Heaped.

Coals.

Water = 1.

Lbs.

Lbs.

Cub. Ft.

Anthracite, American............................

1.30-1.84

93.5

54.0

Bituminous coal, American............................

1 27

84.0

50.0

Coke.

Coke, generally............................

40-50

30.0

70-80

American............................

32.1

69.8

Graphite.............................

2.33

145.3

Lignite and Asphalt.

Perfect lignite............................

1.29

Imperfect lignite............................

1.15

Bituminous lignite............................

1.18

Asphalt............................

1.06

Wood Charcoal.

As made, heaped.

Heaped.

Oak and beech............................

.24-. 25

15-15.6

Birch............................

.22-23

13.7-14.3

Pine............................

.20-.21

12.5-13.1

Average.

.225

14

Gunpowder, loose............................

.90

shaken............................

1.00

solid.............................

1.55-1.80