198 MK. J. W. KIHK15Y ON THE FOSSILS OF THE 



Offer ton. — About two miles further to the SW., on the north 

 flank of the ridge running westward to Pensher Hill, and near 

 to the village of Offerton, there are three old quarries, or "sand 

 holes," showing a small though comprehensive section of the 

 lower strata of the formation. In the two to the east a great 

 deal of the section is masked by rubbish ; but five or six feet of 

 Lower Limestone and Marl-slate is exposed towards the top. In 

 the most westerly, twenty feet or more of Lower Bed Sandstone 

 is to be seen, capped by four or five feet of Marl- slate. The fol- 

 lowing detailed section is derived from the latter and middle 

 holes : — 



FT. IX. 



Slaty limestone rubble 4 



1 . Dark grey limestone ribboned with brown, in thin beds, 



and with partings of laminated marl-slate 1 2 



2. Dark yellow marl-slate, with thin bands of grey sub- 



crystalline limestone 6 



3. Hard chocolate-coloured limestone 6 



4. Hard yellow limestone with large druses of calc spar, 



in a single bed 11 



5. Brownish yellow, rather arenaceous limestone, with 



large druses, in a siDgle bed 1 



6. Yellowish, very compact limestone 2| 



7. Drab and greyish marl-slate, with thin bands of hard 



yellow limestone 1 4 



8. Greyish drab and grey marl-slate, with a single band 



of yellow limestone 11 



9. Grey limestone 2 



10. Brown clay rudely laminated 5 



1 1 . Chocolate-coloured limestone OJ 



12. Brown clay, rudely laminated 5 



13. Brown, drab, and grey marl-slate, with thin white 



seams 3 



14. Brownish yellow marl-slate, with white surface planes 5 



15. Brown and yellowish laminated clay 2 



If-. Reddish sand, with a white layer at top 3 



17. Fine grained yellow sand or incoherent sandstone, full 



of ppa-like concretions — bottom not seen 20 



In beds Nos. 11 and 12, though more especially in the last, 

 I found Strophalosia lamellosa pretty plentifully, along with 



