TABLE IV
Reading edition
Grinding Slabs, Fragmentary Specimens
Igneous Sandstone
Two Sides Used One Side Used Two Sides Used One Side Used
Pecked Pecked Pecked Pecked
Thickness in inches
½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3 ½ - ¾ ¾ - 1½ 1½ - 3
20
24
1 2 1 1 1 28
1 1 2 1 2 4 32
3 4 1 1 1 36
2 3 5 1 2 1 1 1 1 40
4 4 1 1 1 1 1 44
1 2 2 2 2 2 1 1 1 1 2 48
1 1 1 3 2 2 1 1 1 52
1 2 3 3 2 3 1 56
2 3 3 3 2 1 1 1 1 3 60
1 1 1 4 1 3 1 1 64
4 2 2 5 2 1 1 2 2 68
1 2 2 72
1 3 1 1 2 76
1 4 2 2 2 80
1 1 1 2 1 1 84
2 1 88
2 3 1 92
1 96
1 1 100
1 1 104
108
112
116