Material.

Weight.

Ashes...........

59

Asphali...........

150

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

60

Camphor........

63

Charcoal.........

23

Coal solid.......

93

" loose....................

54

Coke............

50

Cork..........

15

Cotton in bales.......

20

Eat........

58

Gunpowder.....

56

Hay in bales.......

17

Isinglass......

70

Lead, red.........

560

Paper........

55

Material.

Weight

Peat.........................

85

Petritied wood.....

145

Pitch........................

75

Plumbago..........

131

Pumice-tone........

66

Resin.............

68

Rock crystal.........

172

Rubber............

62

Salt..........................

134

Saltpeire.........

130

Snow, fresh fallen...........

6

" solid...................

20

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

82

Sulphur..........

125

Tiles...............

115

Water...........

63