FT. | IN. | ||
20. | White rock and peldon | 15 | 9 |
21. | White ironstone measures | 5 | 4 |
22. | Cake ironstone measures | 3 | 0 |
671 | 11 |
Now if with that section we contrast the following one, found in sinking the new Baremoor pit, we shall at once see the whole amount of the change:—
FT. | IN. | |||
[1]7. | To the bottom of the Pins and Pennyearth | 280 | 4 | |
8 | & 9. | Heath measures | 15 | 0 |
10. | Thick-coal rock, composed of rock binds and sandy rock | 107 | 0 | |
11. | Cat heath | 2 | 0 | |
12. | Black batt | 3 | 0 | |
13. | Top part of thick coal | 9 | 0 | |
Black batt | 0 | 8 | ||
Sandy rock, mixed with clunch | 42 | 0 | ||
Rock binds | 44 | 8 | ||
15 | ? | Black batt | 0 | 4 |
16. | Heathen coal | 2 | 10 | |
17. | Black batt and fire-clay | 5 | 10 | |
Brown rock | 0 | 1 | ||
Black batt | 1 | 0 | ||
18. | Second Heathen coal | 3 | 2 | |
19. | Black batt | 1 | 4 | |
20. | Soft brown parting | 0 | 3 | |
Peldon and rock mixed | 4 | 0 | ||
Strong white ground | 13 | 4 | ||
21. | Whitestone measures | 6 | 6 | |
533 | 1 |
Here we find that in this shaft all the measures were regular until they came down into the Thick coal, which, however, they passed through in about 9 feet, and came into sandstone. This 9-foot coal was then worked, and it was said to thin out in every direction by the gradual bending down of its roof, till it was no longer worth following. The shaft having been continued into the Whitestone measures without finding any more Thick coal, and the two Heathen coals having been found lying regularly below, they then proceeded to drive gate-roads (or galleries) from the surrounding excavations in the undiminished Thick coal towards this new Baremoor shaft. In so doing they discovered the nature of the mass of interposed sandstone; and in the year 1849 they had already worked round three sides of it, and thus partially proved its extent.[2] They found it to be an oval cake of