Geology of the Shore of the Severn, 09 



either by sand or mud, the change in deposition arising from 

 the variation of the wind, whether it blows on or off the 

 shore. During the very hot weather in the month of July, 

 1825, the salt of the waters of the Severn was precipitated to 

 the depth of one-tenth of an inch over this part of the shore at 

 low water, and the ledges and hollows of these cliffs were 

 covered with a similar substance — a phenomenon which was 

 noticed by me in the twentieth volume of Mr. Brande's Jour^ 

 nal of Science, &c. 



The organic remains of the alluvium on the shore of the 

 Severn in the parish of Awre are but few, being, as it was 

 before stated, with the exception of those discovered amidst 

 the pottery, &c. at the point k, teeth of horse, deer, ox, and 



We now come to the fossils at the graveT, which lies imme- 

 diately beneath the clay or mould. From a to A there is no 

 stratum of gravel — from a to e the clay is found reposing on 

 lias, burned trees, &c. ; and through e, f g, the shore is covered 

 with mud and rushes. From the exponement of the subfluvial 

 wood at h to the south, the gravel commences incumbent on 

 the sand, which reposes on the blue lias, extending from h 

 to k. 



The organic remains, &c., of the gravel are as follows : — 



Ammonites Birchii. 

 A species of Astrea. 



„ Caryophyllia. 



Fungia. 

 Belemnite. 

 Madrepora Porpites. 

 Mya. 



Small rounded fragments of Oolite. 



Pentacrinite — ^very rare, only two small specimens of the verte- 

 brae of this animal having hitherto been found in the gravel 

 Petrified wood — siliceous. 

 Stones, pierced by Teredo Navalis. 

 Serpula. 



Terebratula lampas. 

 „ dentata. 

 Gryphsea arcuata (incurva of Sowerby), in great abundance. 



[A respectable farmer of the village of Awre informed me 

 that he makes use of this fossil as a medicine for oxen 



