ALLISON : CLEVELAND DISTRICT. 
287 
SECTION OF STRATA BORED THROUGH BY THE " DIAMOND DRILL," 
ON SALTHOLME FARM, THE DURHAM SIDE OF THE TEES. BY 
MESSRS. BELL BROS., loTH DECEMBER, 1874. 
No. 
Strata. 
Thickness, 
Depth. 
Ft. 
In. 
Ft 
in. 
1 
Soil 
1 
g 
1 
2 
Clay 
4 
o 
6 
3 
Dark Sand ... 
13 
o 
4 
Clean Sand ... 
26 
o 
39 
o 
5 
Red Clay 
3 
o 
42 
o 
6 
Sand and Gravel ... 
o 
50 
o 
7 
Boulder Clay 
27 
o 
77 
o 
8 
Red Marl 
73 
o 
150 
o 
9 
Red Sandstone with veins of Marl 
144 
o 
294 
o 
10 
White Sandstone ... 
1 
295 
3 
11 
Red Sandstone with veins of Marl 
153 
9 
449 
0 
12 
Red Sandstone 
10 
o 
459 
o 
13 
Soft Marl 
3 
o 
462 
0 
14 
Red Sandstone 
6 
o 
468 
o 
15 
Blue Vein ... 
o 
10 
468 
10 
16 
Red Sandstone 
31 
2 
500 
0 
17 
„ ,, with veins of Marl 
27 
0 
527 
o 
18 
Soft Marl 
4 
o 
531 
o 
19; Red Sandstone 
2!) 
o 
560 
o 
20 
,, with veins of Marl 
411 
o 
609 
o 
21 Soft Marl 
C) 
o 
615 
o 
22jRed Sandstone with veins of Marl 
31 
o 
646 
o 
23 
o 
652 
o 
24 Marl with blue veins of Sandstone 
1 7 
o 
669 
o 
25 
Red Sandstone with veins of Marl 
66 
o 
73 ~> 
400 
o 
26 
Blue Vein ... 
o 
t 
too 
7 
4 
27 
Red Sandstone with veins of Marl 
0 
740 
4 
o 
28 
Strong- Marl 
Red Sandstone with veins of Marl 
9 
6 
758 
6 
29 
26 
6 
785 
0 
30 
Blue Vein ... 
0 
3 
785 
3 
31 
Strong- Marl 
6 
3 
791 
6 
32 
Red Sandstone with veins of Marl 
30 
6 
822 
0 
33 
Strong- Marl and Sandstone 
17 
0 
839 
0 
34 
Red Sandstone with veins of Marl 
16 
0 
855 
0 
35 
Strong- Marl 
20 
0 
875 
0 
31 
Red Sand and Marl 
5 
0 
880 
0 
37 
Red Sandstone with veins of Marl 
14 
0 
894 
0 
38 
Strong Marl, veins of Sandstone 
6 
0 
900 
0 
39 
1 23 
0 
923 
0 
