8 



as a Society, feeling assured, that though they are not all of local 

 interest, yet they affect us all, for while we individually are local 

 and minute workers, we arc, or ought to be, cosmopolitan in 

 geological and scientific knowledge. In bidding you, therefore, 

 farewell as President of WooDiopo Club, let me remind you of the 

 somewhat hackneyed but deeply significant proverb : — 



" Ars longa vita hrevis." 



NOTE. 



'V\niile these sheets were pas.sing through the press, a discoreiy was made, 

 which, though not actually occurring in the area embraced by the Chib, will 

 be of sufficient interest to record ; and that is, the observance of a protrusion 

 of Upper Silurian rocks close to Cardiff, in a district hitherto entirely unsus- 

 pected, and indeed marked by the Government Surve3'ors as Old Eed Sandstone. 

 My attention was called to the fact by a letter which appeared in the Geologist 

 for April, 1861, and I immediately visited the spot. The deposits occur in 

 the rising ground of Pen-y-lan HiU, about one and a half miles to the east of 

 Cardiff, and are bounded on the west, east, and south by the Drift valley of 

 the Taff, the vaUey of the Rhymney, and the alluvial marshes on the sea-shore 

 respectively. On the west and south they are covered by di-ift, and on the 

 north are overlaid by old Red Sandstone. The whole area, as far as I have at 

 present made it out, is about one and a half miles in breadth, by one and a 

 half in length. A quarry, the mouth of which faces the Bristol Channel, has 

 been extensively worked. The beds appear to be "Wenlock shale, of which 

 there are also capital sections in the lanes around. Tliey dip to the north-east 

 at an angle of thirty degrees. The following fossils have been foimd — some 

 by Mk. Glass, of Kensington, who first called attention to tlie facts, and a 

 few- by me. Bellerophon dQatatus, Athyris tumida, Ilajnus, Calymene, 

 Phacops, Acidaspis, Ormoceras, Natica, Ehynconella, &c. I should be very 

 glad if any Hereford Member would devote a day to a further examination of 

 these beds with me. 



April, 1861. G. P. B. 



