378 Reports and Proceedings. 



bury, as these, though in a valley confessedly excavated by the river, and regarded as 

 of more recent age than the lower beds, would yet be at a far higher level. Though 

 accepting the probable existence of man in preglacial times, he pointed out that up to 

 the present time the beds in Britain in which his works had been found were all 

 postglacial. 



Mr. Boyd Dawkins, in reply, stated that in forming his conclusions, he had not 

 left out of view the evidence afforded by the classes of remains other than those of 

 mammalia, but they threw no light on the classification. With regard to the middle 

 of his divisions of the Pleistocene mammalia, he relied to a great extent on the 

 presence of Rhinoceros megarhinus, and of a large number of Stags, to say nothing 

 of the absence of Reindeer. He did not attach so much importance to the question 

 of the level, as such descrepancies as those pointed out appeared to him by no means 

 impossible. He gave his reasons for not regarding the Mammoth as an exclusively 

 arctic animal. His remarks with regard to M. Lartet's classification referred rather 

 to the expanded views of his followers than to those of M. Lartet himself. He 

 acknowledged his obligations to Profs. Gaudry, Fraas, Riitimeyer, and Nilsson for 

 various facts of which he had made use. 



II.— June 19, 1872.— Prof. Eamsay, V.P.G-.S., in tlie Chair.— The 

 following communications were read : — 1. " On Trochocyathiis an- 

 glicus, a New Species of Madreporaria from the Eed Crag." By P. 

 Martin Duncan, M.B., F.E.S., V.P.G.S., Professor of Geology in 

 King's College, London. 



The author described a Coral of which a single specimen had been 

 found in the Eed Crag, in the grounds of Great Bealings Eectory, 

 Norfolk. He stated that it belonged to the genus Trochocyailius, 

 and was distinguished from the other species of that genus by its 

 dense epitheca, its small and prominent columella, and its inverted 

 calicular margin. He proposed to name it Trochocyaihus anglicus, 

 and stated that its nearest alliance is with the Australian Upper 

 Tertiary form described by him under the name of T. meridionalis. 



Discussion. — Mr. Prestwich inquired whether the fossil bore any resemblance to 

 aay of the French Eocene forms, and whether there was any possibility of its being 

 derivative. 



Prof. Duncan replied that the specimen was but little worn, and was therefore 

 probably not remanie, though this point was not absolutely certain. 



2. " On the Discovery of Pala9olithic Implements in Association 

 with Elephas primigenius in the High-terrace Gravels at Acton and 

 Ealing." By Col. A. Lane Fox, F.G.S. 



The gravels in the neighbourhood of Acton have been divided by 

 Mr. Prestwich into two principal groups, viz, the high-level gravels 

 on the hills above the valley, and the valley-gravels on the sides and 

 bottom of the valley itself. The valley-gravels have been again 

 divided by Mr. Whitaker into three terraces, viz. a high terrace, 

 between 50 and 100 feet above the Ordnance datum, a mid terrace, 

 between 20 and 40 feet high, and a low terrace, at an average 

 height of 10 feet, occupying the low ground in the bends of the river. 

 On both sides of the river the high terrace is separated from the 

 mid terrace by a strip of the London Clay, which is laid bare at an 

 average level of 50 feet. The London Clay is also laid bare on the sides 

 of the tributary streams running into the valley on both sides of the 

 river, thus dividing the high-terrace gravel into patches. The mid 

 terrace is continuous, and follows the sinuosities of the valley on 



