242 
EXCURSIONS. 
passes over the Kellaways Rock, a hard sandy bed at the base 
of the Oxford Clay. 
About 100 yards below the fall there is a fine mass of tufa, 
formed by the evaporation of the waters, charged with car- 
bonate of lime, of a small spring which issues from the side of the 
gorge. 
Passing further down the valley, Xewton Dale was reached 
and the railway crossed, and lunch was consumed at the Needle's 
Eye, whence there are fine \^ews over the moors and along 
Xewton Dale in both directions. 
A walk of about tw^o miles over the heather then brought 
the party to Seavey Slack, where there is a channel through the 
moorland which is beheved to be the overflow of a glacial lake. 
The party was particularly favoured by the remarkably 
dry condition of the moor and the shortness of the heather. 
From Seavey Slack the route again lay across the moors to 
Stape, where the conversances were waiting to convey the mem- 
bers back to Pickering. 
On the homeward journey the party was met by Mr. Mitchel- 
son, who conducted the members to the Roman camps at Caw- 
thorn. Magnificent views of the surrounding country were 
obtained from various points on the route, and the headquarters 
were reached at 6.30. 
The General Meeting was held at the Black Swan Hotel, 
Pickering, on Friday evening, under the presidenc}^ of Major 
Mitchelson, J.P. 
Seven new members were elected. The Chairman gave 
an interesting address dealing with some lake-dwellings which 
he discovered some j^ears ago on the shores of the now dry 
Lake Pickering. 
The dwellings were built on piles, and appear to have been 
connected with islands in the lake by means of trestle bridges. 
It was not possible to determine, from the somewhat scanty 
remains of these bridges, whether or not there were any arrange- 
ments for cutting off communication Avith the shore in case of 
attack. Much pottery was found, together with the remains 
of very large, and now probably extinct, deer, and some human 
bones. 
