PEOCEEDINGS OF THE SCIENTIFIC SOCIETIES OF LONDON. 585 



of the limestone by the action of rain-water containing carbonic acid. 

 Several interesting cases of disturbed gravel were mentioned. 



The second part of the paper was intended mainly to show what 

 light is thrown upon the theory of the denudation of the "Weald by 

 a study of the superficial deposits. After a brief account of pre- 

 vious theories, with objections to the theory of fracture and the 

 marine theory, the authors endeavoured to prove that the gravel and 

 brick-earth (loess) occurring at a very great height above the level of 

 the Medway are old allu\aa of that river. If this point be granted, 

 it follows that so large a denudation has been effected by atmo- 

 spheric agencies, i. e., rain and rivers, that, in the opinion of the 

 authors, there will be little difficulty in supposing the present in- 

 equalities of surface in the Weald to have been produced by these 

 agents acting on a comparatively plane siu'face of marine denuda- 

 tion. A discussion as to the origin of escarpments then follows. 

 The authors considered that the escarpments of the Chalk and Low3r 

 Greensand which surround the Weald are not sea-cliffs, but are due 

 to the difference of waste of the hard and soft formations under 

 atmospheric denudation. 



June 7th, 1865. 



The following communications were read : — 1. " Note on Ovibos 

 moscTiatus, Blainville." By M. E. Lartet, For. Mem. G.S. Trans- 

 lated by the late H. Christy, Esq., E.E.S., F.G.S.— A hoof-phalange 

 found by Mr. Christy and the author at one of their stations in tlie 

 Gorge d'Enfer was stated to be identical in form and dimensions with 

 the corresponding bone of the existing Ovibos moschatus, to which 

 species M. Lartet therefore referred it. With it were found remains 

 of Ursus spelceus, Felis spelcBa, Wolf, !Reindeer, and Aurochs, as well 

 as worked flints differing from those found in any other of the Dor- 

 dogne caves. The author remarked that the Gorge d'Enfer is the 

 most southern locality at which remains of Ovihos moschatus have yet 

 been found, and is 15" south of its most southern limit at the present 

 day ; but the Eeindeer has been found by Mr. Christy and himself 

 further south still — on the northern slope of the Pyrenees. 



2. " On some Additional Fossils from the Lingula-flags." By 

 J. W. Salter, Esq., F.G.S. With a Note on the Genus Anopolenus ; 

 by Henry Hicks, Esq., M.E.C.S. — In a recent paper Mr. Salter des- 

 cribed the new genus Anopolenus as a blind Trilobite allied to Para- 

 doxides, without facial sutures or head-spines, and with truncate body- 

 N.H.R.— 18G5. 2 R 



