180 The Thirty-eighth General Meeting. 
W. R. Anprews, F.G.S., whose knowledge of the geology of that 
neighbourhood is very extensive. He traced with the help of a map 
the geological phenomena of alternate upheaval, depression, and 
denudation which have resulted in the formation of the present 
vallies and the hills which surround them. 
Gen. Pirt-Rivers said that the great difficulty was to account for 
the formation of the deep combes on one side of the chalk hills, the 
ends of which often stretch back to within a very short distance 
of the edge of the escarpment of the other side. Where did the 
water come from to excavate these combesP Mr. Bett also con- 
fessed that none of the explanations he had heard of quite 
satisfactorily accounted for the existence of these combes. 
THURSDAY, JULY 30ru. 
On Thursday morning forty-two members assembled at the 
Town Hall and started at 9.20 for the excursion in breaks. The 
weather looked threatening, and a heavy shower fell just as the 
Racecourse hill was surmounted; but a little while after this the 
weather improved, and the sun came out, so that the party had 
after all a charming drive through a country apparently without 
inhabitants as far as Bokerly Dyke. Here they halted at the point 
where the road intersects the dyke, and Grn. Pirt-Rivers showed 
the spots where his excavations had been made—of which no trace 
remained—and pointed out the fact that the dyke was apparently 
constructed to defend the stretch of open country lying between two 
forest regions in which its ends are lost, in the reign of Honorius, 
or later, after the departure of the Romans, as proved by the multi- 
tude of coins found. (¢f. vol. xxv., p. 297.) 
The next stoppage was at Farnham Museum, a unique collection 
formed by General Pitt-Rivers of agricultural implements and articles 
of peasant manufacture and dress from all parts of the world. Here, 
too, are deposited the models, accurately made to exact scale, of all 
the more important of his excavations, together with the objects 
which were found in them. These he explained to the party, who 
would willingly have spent a very much longer time in examining 
this wonderfully interesting museum—which by the General’s 
