187 



Annelida. 

 Serpula grandis Goldf. 



Echinodermata. 



Clypeus Michelini Wr. 

 Stomechinus germinans. 



No. 4. The Marl-bed. Beneath a thin band of clay under- 

 lying the " Oyster-bed " is a soft mud-stone which is only 

 exposed at one or two points at the south end of the quarry ; it 

 contains many fossils with the shell preserved, but with the test 

 in such a rotten state, that only a few species could be deter- 

 mined. From the position of the bed, and from its organic con- 

 tents, it appears to be the upper part of the Oolite Marl, as this 

 rock is in position and well-developed, within 200 yards of the 

 " Rolling-Bank." The following fossils were there noted : 



Chemitzia sp. Nerincea sp. Modiola plicata Sow 



Pecten lens Sow. Cypricardia cordiformis Desh. 

 Terebratula Etheridgii Dav. Montlivaltia sp. 



From this Section it therefore appears that the Humphresianus 

 beds at Cleeve Hill rest upon the Oolite Marl, and are capped 

 by the Lower Trigonia Grit. The equivalent of the zone is only 

 partially fossiiiferous at Charlton Common, Leckhampton, 

 Shurdington, and Cooper's Hill. Doubtless if the rocks were 

 worked the characteristic fossils would be found. For the grand 

 development of the beds composing the zone of Ammonites' 

 Humphresianus the student must proceed to Dundry Hill where 

 they are admirably exposed and richly fossiiiferous, being capped 

 by the beds forming the zone of Ammonites Parkinsoni, and 

 resting on a thin bed of Upper Lias Sands. 



In Somersetshire and Dorsetshire the middle division of the 

 Inferior Oolite is likewise well developed and exposed. 



With these notes by Dr. Wright I will bring to a close the 

 question of the " Roadstones " of Cleeve Hill, the position of 

 which may now be looked upon as definitively settled, all our 

 local geologists having assented to the position laid down by 

 the Secretary and Dr Wright. This was the problem proposed 

 for solution at our Cheltenham meeting, and it has drawn forth 

 an amount of learning and research most creditable to the 

 Geologists of our Club. It is in the elaboration of such local 

 details that we can best serve the cause of science ; and it seems 

 to me most desirable, that keeping that aim in view, we should 

 direct our attention as much as possible to special points of local 

 difficulty and interest, whereby we shall be setting before us an 

 object, the careful elucidation of which cannot fail to stimulate 

 our individual energies, while at the same time it will secure 

 well-merited honour to the Scientific Society to which we belong. 



