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to an aggi'egate thickness of eight or ten feet. The Lias rises 

 on the hill side to a height of about 50 feet, succeeded by the 

 Liassic Sands and Inferior Oolite ; and at about 250 feet above 

 the stream, by the Fullers Earth, which is capped by the Great 

 Oolite beds forming the table-land on Minchinhampton Common. 

 Within a mile of the village of Nailsworth this hill has eight 

 hollows, (one of which is a deep combe,) formed in its sides. 

 In most of these hollows no traces remain expossd to view of the 

 Lias, or its Sands, nor of the Inferior Oolite, but they are now 

 occupied by slipped masses of Fullers Earth, which has carried 

 down portions of its rock bed charged with Ostrea acuminata, 

 and also slabs of the basement beds of the Great Oolite. 

 Between these hoUows the hill side projects forward, and on 

 three at least of such intervening slopes lie masses of slipped 

 Inferior OoHte, which, wherever worked by means of surface 

 quarries, is seen to be much tumbled about, the beds of the 

 blocks lying at all angles. In one place Eagstone has been dug in 

 considerable quantity at least 100 feet below its usual position. 



" One mile below Nails worth, and rather lower down than the 

 junction of the Woodchester Park valley with the main valley, 

 occurs the largest of the landsHps. [This is the slip alluded to 

 in the text.] It .reaches from the Fullers Earth beds at 

 Amberley Churchyard, 250 feet above the vaUey, dovra to the 

 stream side at Dyehouse MiUs. It consists of a mass of Fullers 

 Earth, and occupies a hollow in the hill side, and at the base 

 projects forward so as almost to touch the opposite hill slope ; — 

 it is probable that at its first descent it reached quite across the 

 bottom of the valley, and dammed back the stream ; and this 

 has probably been one cause of the silting up of the valley 

 bottom, (as before alluded to,) as far up as the village of 

 Nailsworth. The stream would, however, after a time, cut its 

 way through this clay nearly to its former level ; but one effect 

 of this obstruction has been that three millfaUs have been 

 obtained, in a distance of about 500 yards, just opposite this 

 landsUp, and that with scarcely any artificial embankment. For 

 a long time this slipped mass had shown but httle movement, 

 and had been considered a sufficiently safe site for building 



