114 



"Where the peat thins out, potholes were seen of fine sand 

 and gravel, fiUed with Northern Drift. 



On the present surface of the ground, almost due north of the 

 peat bed. Northern Drift pebbles are scattered with unrolled 

 cretaceous flints, and in some places, as at the bank of the river, 

 the drift is 4 ft. 6 in. thick, resting also on an eroded surface 

 of Old Red Marl, and therefore contemporaneous with the base 

 upon which the clay at bottom of the Peat Bed rested. 



S. and S.W. gravel beds were exposed, of which the following 

 is a general section : — 



2ft. 



2ft. 



3ffc. 



Soil or Till, with N.D. Pebbles. 



Mainly N. D. , and in places bands 

 of Qiiartzose Sand. 



ooooooooo 

 oooooooo 



ooooooooo 

 oooooooo 



ooooooooo 



Oolite, some Marlstone, 

 shewing much water 

 action from washing, 

 fragments of Ammo- 

 nites, Oryphcea incur- 

 va, some N. D. 



This gravel bed is nearer the Cotteswold range than the drift 

 due N., which explains the presence of oolite. On either side 

 of the Royal Drough,* at a c'eoth of about 16 feet, is a con- 

 tinuation of the same peat bed about 6 feet thick, and it is met 

 with again a few miles higher up the Severn, at Epney and 

 Tramilode; it has also been traced at various places up to 

 Gloucester, and when the Over Bridge there was being con- 

 structed, the engineer made careful borings and found 2 feet 

 of peat, covered up by 13 ft. 9 in. of light blue clay, and above 

 that 10 ft. 8 in. of sand and red clay, capped by a foot of soil. 



The Holly Hazle bed, as will be seen on the map, extends 

 into the Severn, and I have traced it for 100 yards from the 



* Tliis bed was first noticed by Mr. John Jones in his admirable paper 

 "On Natural History, Geology, &c., of Sharpness Point District," 

 published in our Proceedings vol. 3. 



