344 DURNFORD : DEEP BORING NEAR SELBY. 
are the seat earths of coal seams which have disappeared 
at the point where the hole was put down owing to the 
abnormal and probably merely local conditions existing. 
In conclusion the writer thinks the fact that 1,050 feet 
of Coal Measures have been proved by the hole to some 
extent justifies the undertaking, and should be an incentive to 
further borings in the neighbourhood more to the west, or at 
any rate clear of the site of the hole at Barlow, in order to prove 
the valuable coal seams which doubtless exist in the district. 
The writer expresses his appreciation of the interest taken 
by so many gentlemen in the undertaking, and his thanks to 
those who have given him the benefit of their experience. 
APPENDIX. 
Section of Strata in a Bore-hole near Selby, in the Parish 
OF Barlow, County of Yorkshire, during 1904-1906. Latitude 
53° 45' 20" AND Longitude 1° 2', and 16-1 Feet above Ordnance 
Datum-level. 
Thickness of Depth from 
No. Description of Strata. Strata. " Surface. 
Ft. In. Ft. In. 
Alluvium. 
1. 
Dark-brown clay 
... 24 
0 ... 
24 
0 
2. 
Brown clay : friable ... 
... 14 
0 ... 
38 
0 
3. 
Red sand 
1 
0 ... 
39 
0 
4. 
Clay 
... 15 
0 ... 
54 
0 
5. 
Sand 
... 18 
0 ... 
72 
0 
6. 
Red sand 
... 22 
0 ... 
74 
0 
Trias. 
7. 
Red sandstone : broken 
... 56 
0 ... 
150 
0 
8. 
Red sandstone ... 
... 50 
0 ... 
200 
0 
9. 
Red sandstone : friable 
... 80 
0 ... 
280 
0 
10. 
Mottled red marl 
2 
0 ... 
282 
0 
11. 
Red sandstone ... 
8 
0 ... 
290 
0 
12. 
Red sandstone : solid ... 
... 197 
0 ... 
487 
0 
13. 
Red sandstone ... 
... 95 
0 ... 
582 
0 
14. 
Red sandstone, mixed with marl 
... 43 
0 ... 
625 
0 
15. 
Grey sandstone ... 
... 45 
0 ... 
670 
0 
16. 
Red sandstone ... 
2 
0 .. 
672 
0 
17. 
Red marl 
... 1 
0 .. 
673 
0 
18. 
Red sandstone ... 
... 22 
0 .. 
695 
0 
19. 
Red marl 
... 6 
0 .. 
701 
0 
20. 
Red marl, with sandstone layers 
4 
0 .. 
705 
0 
21. 
Red and mottled marl ... 
... 10 
0 .. 
715 
0 
22. 
Red marl 
4 
0 .. 
719 
0 
23. 
Red marl and sandstone 
1 
0 .. 
720 
0 
