20 PROCEEDINGS COTTESWOLD CLUB 1910 



Mr Elvves also exhibited his books on trees and hhes ; his butterflies, and 

 stuffed skins of animals that he had shot ; while some of the Members went 

 up to the fish-ponds. 



After tea at the Park, the Members returned — some to Cheltenham, 

 others to Cirencester, etc. 



As regards the geology in the immediate neighbourhood of Colesborne, 

 the bottoms of the valleys are in the Upper Lias. Clay was dug for 

 brick-making at Colesborne,' and one of the present writers (L.R.) has in his 

 possession pieces of the ammonites Harpoceras elegans (Sow.) and Hildoceras 

 hildense (Sow.), which were given him by the late Arthur Spry Helps. They 

 date the clay in which they occurred as falciferi-bijrontis. 



Above the Upper Lias comes the Inferior Oolite, which forms the valley 

 sides ; while here and there, capping the higher hills, are little patches 

 of Fullers' Earth or Great Oolite, or both combined. A fault passes roughly 

 east and west through Colesborne village, and the Pea-Grit of the Inferior 

 Oolite is brought down on a level with the Upper Lias. Typical Pea-Grit, 

 with well-formed pisolites and Rhynchonella oolitica, Dav., can be seen above 

 a spring by the brook near the village. 



EXCURSION TO BUILTH WELLS AND RHAYADER 



Tuesday-Thursday, July I3th-i5th, 1909 



Directors : The Rev. E. Edmondes Owen, B.A., and L. Richardson 



{Report by L. Richardson) 



The long excursion of the Club was held in Mid-Wales on July 13th- 

 15th, the Members present being the Rev. Walter Butt [President), Mr 

 L. Richardson, F.R.S. Edin. {Hon. Secretary), Mr J. G. Phillips {Hon. 

 Librarian), Lieut. -Col. J. C. Duke, Surgeon-Major I. Newton, Colonel E. C. 

 Dowse, Messrs J. M. Collett, F.C.S., F. J. Cullis, F.G.S., G. M. Currie, J. M. 

 Dixon, J. N. Hobbs, and the Rev. C. H. Davies, while the Rev. H. J. 

 Riddelsdell came as a visitor. 



The Members assembled at Builth- Wells Station on the Tuesday at 2.25 

 p.m. Unfortunately, a heavy shower had just commenced, and the first 

 part of the programme was seriously interfered with. In pouring rain 

 the Members viewed the picturesque rapids of the Wye (PI. IV.) between 

 Builth-Wells and Builth-Road Station, and listened under the shelter of the 

 trees to the remarks of the Hon. Secretary, which, he said, they must regard 

 merely as an introduction to the study of the geology of the district. 



The scenery of the neighbourhood of Builth-Wells is extremely pretty, 

 and owes its origin to the differential action of denudation upon somewhat 

 folded and faulted rocks of different powers of resistance. 



The hill-mass that is perhaps the first to attract attention upon arrival 

 at Builth-Wells is the Carneddau. It is its ruggedness that compels notice. 

 It is composed of the oldest rocks in the district, which occupy the centre of 

 a dome. 



I E. Hull, "Geology of the Country around Cheltenham" (1857), p. 24. 



