610 LIEUT.-COL. H. H. GODWIN-AUSTEN ON THE 
gravels and sands of Shalford Common east of Stonebridge, Bradstone 
Brook, &c., all deposited since a further excavation of the valley took 
place. Near Chilworth Station, on the South-Eastern line of railway, 
we have some gravels as high as 200 ft.; these might be referred to 
the age of the Guildford sands. We may also refer to these last 
certain high-level.sands indicated thus by my father (Joc. cit. p. 115, 
fig. 1):—‘* The gravel beds pass into fine sand, horizontally bedded, 
in the valley west of Pease Marsh, where the dotting of the plan is 
discontinued.” These I have not had time to examine, and I do not 
know the level at which they occur. 
Returning to the upper gravels (g) in section (fig. 1), derived ex- 
clusively from the Chalk, it is at once evident that this enormous 
quantity of flints did not arrive from the side of the gorge. It 
points to some such change of drainage-lines or conditions as to 
render the gorge of the Wey no longer an outlet to the north, and 
to a transport of materials derived from the Chalk and Tertiary for- 
mations all along the north face of the hills here, that is the North 
Downs. The alternate beds of loam and flints are so regular and 
horizontal in places, that still water seems indicated; while in 
other places (see fig. 7) the displacement of the beds indicates 
great pressure and lateral pushing, combined with a semifluid state, 
remarkably like the glacial deposits of Alpine valleys. This section 
is very similar to fig. 2 at Wilton, Salisbury, given by Professor 
Prestwich, Quart. Journ. Geol. Soc. vol. x1. p. 102. 
The occurrence of land-shells in the loamy sands indicates that 
these have been brought down from off the old land-surface they 
lived upon. This part of the section, where the beds are so very 
coarse and irregular and nearer to the chalk (fig. 7), shows, as 
Fig. 7.—Section on North side of Line at 15 miles 9-75 chuins 8 yards 
from London Road Bridge, west side. (Scale 7 inch to 1 foot.) 
W. 
a, a'. Pale grey chalky loam. 
b, b'. Large flints, all more or less broken. 
ce. Sand, coarse, earthy. 
x* Shells of Helix and Pupa. 
The arrow shows the direction of the Drift. 
