ON THE EAGSHOT BEDS OF THE LONDOX RASIN. 413 



an interstratified series of sand and seams of pipe-clay, such as is 

 frequently found near the base of the Lower Bagshot, as at Wick 

 Hill, Bracknell, and at Tangley cutting already described ; and if 

 there is a pebble-bed, it is one of the irregular lines of pebbles, 

 instances of which we have shown to occur in the Lower Bagshot. 

 We therefore contend that there is no evidence here to show any 

 overlap of the Lower Bagshot by the Middle and Upper beds of the 

 series. 



The Ash — W^oking District. 



The sands at the Ash-Church station on the ISouth-Eastern 

 Eailway are undoubtedly Lower Bagshot. The pebbles of the Upper 

 Bagshot pebble-bed are seen in considerable numbers capping the 

 hill to the north-west (not in situ), and the green-sand bed crops out 

 along the base of the Fox Hills at a considerably higher level than 

 the station. 



Formerly it was well seen in a brickfield which is now disused ; 

 it was underlain by clays, which are still shown in another brick- 

 field, rather to the east, at the side of the road close to the figures 

 " 240 " on the new one-inch map. 



That the clay here is the basement-bed of the Middle Bagshot is 

 proved by a small sand-pit at the roadside close to this last- 

 mentioned brickfield ; and all possible doubt as to the sands at Ash 

 Church being Lower Bagshot is removed by a roadside cutting in a 

 lane leading from the brickfield to East Wyke Farm, where the 

 Lower Bagshot Sands are seen dipping towards the brickfield and 

 Fox HiUs. 



Roadside section near East Wy]i:e Farm, Ash. 



ft. in. 



1. Whitish false-bedded sand 1 10 



2. Yellow sand and white clay, laminated 1 10 



3. Grrey and yellow mottled sand, a few concretions 10 



4. Dark yellow iron -sand 10 



5. Yellowisli sand with several laminae of whitish clay 3 9 



6. False-bedded white sands with black grains 5 5 



Dip about 3° rather E. of N. 



The occurrence of the green sands of the Middle Bagshot at 

 Worplesdon is recorded in the Memoirs of the Geological Survey 

 (vol. iv. p. 333) ; and in a road-cutting near the church the base- 

 ment-bed of the Middle Bagshot, consisting of grey laminated clay, 

 may still be seen, and below it are yellow sands, obviously Lower 

 Bagshot. Further east the yellow and white false-bedded sands of 

 Pitch Place and Worplesdon Station (which are at a lower level) 

 are undoubtedly Lower Bagshot. 



Between W^orplesdon and Pirbright abundance of rolled pebbles 

 occur on the surface. At Ellis Place, 1| mile south of the Woking 

 convict-prison, the junction of the Middle and Lower Bagshot is 

 again seen in a road- cutting. The Middle Bagshot consists of 

 white clays, with small pipes of green sand ; the Lower of fine 

 whitish-yellow sand. 



