h ke Y n E ne£y D ] region surrounding spindletop. 99 
Log of Slaughter-Masterson well on lot 2 of Veatch survey — Continued. 
38 
39 
40 
41 
42 
4:: 
44 
45 
46 
47 
48 
4!) 
50 
51 
52 
53 
54 
55 
56 
57 
58 
59 
60 
61 
62 
63 
64 
65 
Character of strata. 
Soft gray clay 
Hard blue clay 
Limestone with thin layers of clay 
Clay 
Thin layers of limestone with some gas, hard 
in lower division 
Gray sand showing oil and gas_ _ _ 
Hard limestone 
Hard clay 
Hard blue limestone 
Pebbly concrete 
Soft white lime with iron pellets . 
Coarse gray sand 
Limestones interstratified with blue and red 
clays and sand with pyrites 
Conglomerate 
Clay with thin layers of limestone 
Very hard bed of limestone 
Yellow sand . 
Soft limestone 
Clay with wood and iron pyrites 
Soft reddish clay 
Blue limestone with sand and pebbles 
Soft red clay 
White sandstone 
Limestone with pink pebbles , 
Coarse gray sandstone with some lime in 
lower division 
Gray clay 
Sandstone with lime 
Tough red clay 
Gray and pink limestone 
Blue clay and red clay 
Sandstone 
White limestone with iron pyrites 
Limestone 
Thickness. 
Feet. 
7 
14 
20 
47 
58 
57 
2 
10 
1 
2 
12 
5 
185 
18 
80 
8 
10 
17 
80 
15 
21 
:c> 
11 
8 
69 
24 
27 
14 
5 
20 
11 
20 
35 
From- 
Feet. 
1,173 
1,180 
1.194 
1,223 
1,270 
1,328 
1,385 
1,387 
1,397 
1,398 
1,400 
1,412 
1,417 
1,552 
1,570 
1,600 
1,608 
1,618 
1,635 
1,665 
1,680 
1,701 
1,756 
1,767 
1 . 775 
1,844 
1,868 
1,895 
1,909 
1.914 
1 . 984 
1,945 
1,997 
III the same belt, along the northern side of the hill, are the Tread- 
way and Allyne wells, which have been drilled to depths exceeding 
1, 800 and 2, 000 feet. In the Tread way the general series of sands, 
clays, and sandstones occurs, with occasional seeps of oil and proba- 
