Geological Society of London, 387 



forthcoming to identify more conclusively the Wealden strata of the 

 Boulonnais with those of England, and suggested their correlation 

 with the Beauvis beds. 



The Rev. Mr. Wiltshire remarked that in Kent the Ammonites 

 mammillaris was contained in large nodules, and occurred only below 

 the lower phosphatic band. 



Mr. Whitaker, who had been with the author in the Boulonnais, 

 had been, contrary to his predilections, compelled to regard the beds 

 referred to the Wealden as belonging to that formation, and not to 

 the Lower Greensand. 



4. '' Note on the Mendip Anticlinal." By C. H. Weston, Esq., 



r.G.s. 



The author called attention to the discovery of igneous rocks in 

 the north-western portion of the Mendip Hills long previous to Mr. 

 Moore's discovery of them in the south-east ; and he stated that this 

 fact left no doubt about the persistence of this upheaving agent 

 throughout the entire anticlinal of the Old Red and Carboniferous 

 series. 



in.— June 17th, 1868.— 1. " On the Distribution of Stone Imple- 

 ments in Southern India." By R. Bruce Foote, Esq., of the Geo- 

 logical Survey of India. 



The chipped stone implements of Southern India are found in, or 

 associated with, two formations — the coast-laterite, which is a marine 

 formation, and a freshwater deposit, occun-ing inland at greater ele- 

 vations above the sea. Most of them have been found either in situ 

 in the laterite of the eastern coast, or distributed over its surface ; 

 several have been collected off the surface of older rocks, in places 

 where the laterite had been removed by denudation ; others have 

 been discovered on the surface at great elevations in other parts of 

 the country, where no distinct traces could be seen of the formation 

 from which they had weathered out, and which had a different origin 

 (possibly freshwater) from that of the marine coast-laterite ; while a 

 few have been obtained from imquestionably fluviatile deposits. 

 None have been collected from formations known to be either 

 younger or older than the coast-laterite. 



The author inferred that during the latter part of the laterite- 

 period the land was raised to the extent of 500 or 600 feet; that 

 this elevation was followed by a period of quiescence, during which 

 the laterite was extensively denuded ; that this epoch was succeeded 

 by a period of depression, during which the recent coast-alluvium 

 was formed ; and that a subsequent elevation brought the land into 

 its present position. 



Discussion. — The President referred to the evidence of Physical 

 Geography to prove that the Deccan was once an island, and to Ethno- 

 logical data to prove that the people who made the quartzite imple- 

 ments were probably not the original Aryans, but were the ancestors of 

 the Hill tribes, whose nearest affinities are with the aboriginal Aus- 

 tralians of the present day. He was of opinion that the two popu- 

 lations were once nearly or quite continuous, having been subse- 



