148 



deposition the valley has been materially deepened. Since the 

 visit of the Club the pit has been excavated to a greater depth, 

 as shown in Fig. 1. 



The position which thff Gravel occupies varies according to 

 the character of the slope on which it lies, and the formation 

 from which it has been derived; thus, the Gravel from the Great 

 Oolite, Stonesfield Slate, or Forest Marble is usually found 

 deposited vipon the Fuller's Earth, while that derived from the 

 Inferior Oolite is sometimes found as described by Mr. LtrcY, 

 "running up to a point where the Combe rises at a considerable 

 angle;" but it is by no means confined to the Combes: it may 

 be generally seen along the slopes of the hills, and at various 

 levels. Where the land is under cultivation, its presence may 

 be readily detected. It may occupy the edge of an escarpment, 

 or extend up to the ridge of a long spur. It may rest upon 

 the Upper Lias in the steepest part of a slope, or fill up a 

 hollow in the hill side, or lie in the bottom of the valleys. 



At Hyde it has been derived from the Great Oolite and Forest 

 Marble, and it forms the top of the Escarpment of the Inferior 

 Oolite, as shown in the section (fig 2.) This deposit is stated 

 by Dr. Ltcett to be 16 feet thick. At Longfords Lake it is 

 near the bottom of the valley, interstratified with river Gravel, 

 the whole being 20 feet thick (fig. 1.) At Stroud it is on 

 the slopes of the spur upon which the town is built, and 

 varies in thickness from 1 to 4 feet. At Pitchcombe it is on the 

 slope, but runs up to the ridge of the spur which forms the 

 western side of the combe, and is in layers, some of which are 

 mixed with earth, showing a succession of deposits, and possibly 

 a change of conditions (fig. 3.) In Gatcombe Park, in an area 

 of 5 or 6 acres there are five pits open at various levels, but as 

 they are on Fuller's Earth, their present different positions may 

 be owing to landslips. At Eodborough Hill, in an old water- 

 course now dry, about 10 feet wide and 6 feet deep, in the 

 south-west slope of the hill, and in the steepest part of the 

 slope, the Gravel has been deposited to the depth of four feet, 

 partly filling up the bed of the water-course. In the valleys of 

 the Upper Cotteswolds which run southward, the Gravel is 



