60 
THE GEOLOGIST. 
The general dip of the strata, about 15°, is south-east, and as we 
proceed northward we pass over tlie lower beds in succession. There 
are a few dislocations and faults, and in some parts the limestones are 
thrown into wave-like ridges and hollows ; but the contortions are not 
so remarkable as at Ho wick. Holy Island, and Scremerston. As the 
greater proportion of the middle group of the mountain-limestone 
rocks is seen here, the following section will be instructive, giving, as 
it does, the strata in detail from the highest at Ebbs Nook, down to 
the lowest which have been reached by pit-sinkings in the neighbour- 
hood. It has been made out by repeated examinations of the coast, 
collated with information derived from pit-sinkings, which has been 
kindly supplied to me by my friend, Mr. William Wilson, the intelli- 
gent manager of the Shilbottle Collieiy. The lower strata from 
No. 68 downward are taken eutii-ely from pit-sections. 
SECTION. 
ft. in. 
1. Ebbs Nook Magne.sian lime- 
stone, containing PtoiZ«c?«« 
cfirjanteus, Spirifcr lineatus, 
Chcetetcs septusus, Lithostro- 
tion basaltiforme, Syringo- 
pora rumulosa, itc. . . . 30 0 
2. Red, liaggy sand.stone, ripple- 
niarked 4 0 
3. Shale, reddish at top, darker 
and carbonaceous in lower 
beds 20 0 
4. Coal -.12 
5. Fire-clay and shale ...70 
6. Flaggy sandstones,micaceons 
along tlie laminre ; with 
borings of annelids i . . . 30 0 
7. Shale 5 0 
8. Sandstones with ripple- 
marks, false-tx'dding, and 
worm-casts and trails . . 40 0 
9. Shales ........ 27 0 
10. Limestones, generally blue ; 
some lieds dun, weathering 
buff ; a calcareous shale, 
2 ft. 6 in. is interstratified : 
— Productus gif/anteus, Av^ 
lophyllum fiintjites, tfcc. . 28 0 
11. Coal mixed with shale ..06 
12. Arenaceous shale ....10 
13. Sandstones, some blotched 
and red, others Haggy ; 
Sliymaria ficoides in upper 
beds, annelids in flaggy 
beds 24 0 
14. Shale with u'onstone-nodules 15 0 
15. Limestone, generally blue : 
— the basaltic dyke cuts 
through these beds near 
the shore 18 0 
16. Coal 0 6 
17- Grey shales with ironstone- 
nodules 10 0 
18. Blue shales 15 0 
19. Grey slaty sandstone ...50 
20. Coal {stony coal) — this is very 
nearly in the same position 
in the series as tlie fine 
"Shilbottle-seam" ...10 
21. Slaty sandstones . . . .80 
22. Blue slates 7 0 
23. Slaty sandstones and shales 
— some beds are rijiple- 
niarked, and the vein of 
Galena is seen crossing the 
sandstone . . '. . . . 37 0 
24. Shales 10 0 
2.5. Limestone, dark ....60 
26. Grey slaty sandstones and 
shales 27 0 
27. Calcareous shale ; with many 
fossils 3 0 
28. Limestones much contorted ; 
the upper h'cds impure, hut 
the middle and lower make 
good lime. These beds were 
