Proceedings. 71 



The Secretary then read the following Eeports of the 

 Excursions, furnished chiefly by the various conductors 

 during the last summer : — 



Cateeham Junction and Ckoydon. — April 22, 1882. Leaving 

 Caterham Junction Station, we went for some little distance 

 along the road that ascends the Caterham Valley, ha^ang on 

 our right hand the channel down which the intermittent 

 stream known as' the Bourne flows at uncertain intervals, 

 usually for a few mouths about every five years. We soon 

 ascended on to Eiddlesdown, and on coming to one of the 

 ventilating shafts of the tunnel through which the new line 

 now in course of formation passes under this hill we made 

 our way down into the deep chalk-cutting at the S.E. mouth 

 of the tunnel, and spent some time searching for fossils, a 

 few of which were found. Ee-ascending the downs we then 

 continued our course by lanes towards the village of Sander- 

 stead. Several Nightingales were heard singing as we passed 

 along in the copses near the roadside, and among other 

 migratory visitors Avhose songs called attention to their 

 arrival again in this country were the Whitethroat and 

 Cuckoo. In Sanderstead Churchyard Saxifraga granulata 

 was found in flower, and in a wood close by Veronica montana 

 was met with in some abundance. The next point of interest 

 was Crohamhurst, a well-wooded hill consisting almost en- 

 tirely of the rounded pebbles known as the Oldhaven Beds. 

 As very httle soil is intermixed with these, the surface of the 

 hill-side is in some places very loose, resembhng the shingle 

 of a sea-beach. In a small excavation at the foot of the hill 

 these round pebbles were found to be resting absolutely on 

 the chalk ; and it was curious to observe how some of them 

 had worked their way downwards and some of the irregular 

 chalk-flints had worked upwards, so that here and there the 

 two were intermingled ; the one probably still remaining in 

 the same position, and, comparatively speaking, almost the 

 same shape in which they were originally deposited ; the 

 other the result of the debris left behind after the denudation 

 which removed the chalk and other beds which once extended 

 over the Weald area, subjected to a long course of rolUng 



