Substance.

Specific Gravity.

Weight of One Cu. Ft.

Water = 1.

Pounds.

Pearls............................

2.72

169.6

Coral....................

2.69

167.7

Ivory..................

1.82-1.92

114-119.7

Bone................................

1.80-2.00

112.2-124.7

Wool.................................

1.61

100.4

Tendon................................

1.12

69.8

Cartilage.................................

1.09

68.0

Human Body................................

1.07

66.7

Nerve................................

1.04

64.9

Beeswax................................

.96

59.9

Lard................................

.95

59.3

Spermaceti.................................

.94

58.8

White of Whalebone.................................

.94

58.7

Butter.................................

.94

58.7

Pork Fat.................................

.94

58.7

Tallow.................................

.92

57.5

Beef Fat.................................

.92

57.5

Mutton Fat................................

.92

57.4

Vegetable Substances

Cotton.................................

1.95

121.6

Flax................................

1.79

111.6

Starch................................

1.53

95.4

Sugar.................................

1.005

Gutta-percha................................

.97

60.5

India-rubber................................

.93

58.0

Weight of

One Cu. Ft., loosely filled.

Weight of One Cu. Ft., closely filled.

Grain:

Wheat, California................................

49

53

Peas................................

50

54

Indian Corn.................................

43½

47