A gallon of water or. wine weighs 10 lbs., and this is taken as the basis of the following table:

Liquids.

Water

100

Sea Water

103

Dead Sea

124

Alcohol

84

Olive oil

92

Turpentine

99

Wine

100

Urine

101

Cider

102

Beer

102

Woman's milk

102

Cow's milk

103

Goat's milk

104

Porter

104

Timber.

Cork

24

Poplar

38

Fir

55

Cedar

61

Pear

66

Walnut

67

Cherry

72

Maple

75

Ash

84

Apple

79

Beech

85

Mahogany

106

Oak

117

Ebony

133

Metals.

Zinc

719

Cast iron

721

Tin

729

Bar iron

779

Steel...................

783

Copper

869

Brass

840

Silver

1,051

Lead

1,135

Mercury

1,357

Gold.................

1,926

Platina

1,950