in the Neighbourhood of Bristol. 197 



1. A mass of limestone composed almost entirely of organic 

 remains, and containing much iron, with madrepores between 



the strata 90 feet 



2. Ten thin beds of blue and close-grained limestone, with 

 clay between them, in which madrepores are imbedded . . 8 



3. Limestone composed entirely of particles bearing marks 



of organization 18 



4. A very thin stratum of red clay, covering 



5. *A layer of coaly matter, one inch thick. 



• The following more detailed section of the beds lying above the coal marked No. 5, in 

 the text, has been communicated to the Society by G. Cumberland, Esq. 



1. — Sparry limestone, the edges of which being tinged with iron resemble Ft. fa. 



lepidolite feet 10 



2. — Red, blue and white schistose clay 26 



3. — A stratum very full of fissures, the laminae composed of quartzose sand 



united by a quartzose cement 9 



4. — A stratum of what is called "Dun marie," containing very angular frag- 

 ments of limestone and ironstone : the marl is red, blue and white, and 



is speckled with ferruginous sand and pieces of schistose clay 6 



5. — A very hard mixture of ironstone and quartzose sand with portions of an 



oolitic texture 



6. — A ruddy and arenaceous limestone, ochreous, passing into ironstone of a 



fine grain 2 



7. — A stratum of ironstone 1 inch thick ; then a very hard and fine grained 



arenaceous stratum 6 1 



8. — A fine grained arenaceous stratum 2 6 



9. — A stratum containing fragments of shells 4 



10. — A stratum containing fragments of shells and corals, in part argillaceous, 



and having the oolitic texture ; of a brown colour 4 



11. — Three inches of ochreous clay with blue schistose clay, with oblong geodes 



of red iron ore very compact and hard S 



12. — Limestone having throughout the oolitic texture 12 



1 3. — Schistose clay or stone with nodules of coral 5 



14. — Very arenaceous limestone with oolitic texture 1 



15. — Schistose wet clay coloured by iron with nodules 2 



16. — Limestone, somewhat oolitic, tinged with iron, containing broken shells. . 4 



Vol. iv. 2 c 



