Substance.

Lbs.

Oz.

Italian Marble..........

169

4

Vermont Marble........

165

9

winaow Glass...........

165

2

Common Stone..........

157

8

Moist Sand....

128

1

Clay.......

120

10

Brick.......

118

12

Mortar.................

109

6

Mud.......

101

14

Loose Earth...

93

12

Lehigh Coal, loose,

56

4

Lackawanna, loose,

48

10