viii PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [vol. lxxix, 



effected, it was essential that we should be able to produce from 

 this country evidence of a definite succession involving glacial 

 deposits and evidences of Man for comparison with the foreign 

 successions. The excavations necessary to establish this succession 

 had recently been begun by Mr. J. Reid Moir in East Anglia, the 

 geological evidence being collected by the speaker. Already 

 excavations near Ipswich had indicated that brick-earths con- 

 taining unabraded Acheulean implements overlay the Chalky- 

 Kimmeridgian Boulder Clay, and were in turn overlain by dis- 

 turbed gravels containing wisps of Boulder Clay and scratched and 

 abraded Chellean and Mousterian implements. In view of the 

 fact that Mr. Reid Moir claimed to have found pre-Chellean or 

 early Chellean implements at the base of the Cromer Forest-Bed, 

 and that remains of JSlephas antiquus were most abundant in 

 that deposit, a possible solution appeared to lie in the penecon- 

 temporaneity of the North-Sea Drift of Cromer (' Lower Glacial ') 

 and the Chalky-Kimmeridgian Boulder Clay ('Upper Glacial'). 

 The latter did not mark the last glacial episode in the East of 

 England. An intensely chalky Boulder Clay and deposits showing 

 much (apparently glacial) disturbance occurred above it ; these 

 might, as Mr. Reid Moir contended, be correlated eventualky with 

 the Lower Mousterian deposits of the Continent. 



Mr. H. Dewey called attention to the difficulty encountered in 

 deciding to which terrace particular deposits belong. As implements 

 of Chellean and Acheulean forms are, in many known instances, 

 of the nature of derived fossils, they cannot be used to ' date ' 

 precisely the deposit in which they occur. The first working-sites 

 are of Mousterian age, and this appears to be rather later than the 

 50-foot terrace. The raised beach at Brighton and Bembridge 

 contains implements of Chellean and Acheulean forms ; it appears 

 to be contemporaneous with the 50-foot terrace, and possibly also 

 with the raised beach of South Wales and the South of Ireland, 

 which are covered with boulder-clays belonging to the period of 

 maximum glaciation. But, according to the current view, the 

 50-foot terrace is later than the Chalky Boulder Clay, and hence 

 arises a problem that remains to be solved. 



Mr. K. S. Sandford remarked that the late Clement Reid 1 

 and Dr. A. E. Salter 2 had referred to the discovery of remains 

 of Elephas mericlionalis Nesti, and possibly of E. antiquus, 

 in bedded Upper Pliocene deposits at Dewlish in Dorset. These 

 beds rest, not in pipes as at Lenham, but upon the Chalk-surface at 

 350 feet above O.D. : they would seem to correspond to the deposits 

 of the 100-metre Sicilian coast-line, and as such afford useful 

 evidence in support of the faunal and stratigraphical sequence 

 suggested by Prof. Deperet. 



The Secretary read a letter from Mr. J. Reid Moir, expressing 

 his regret that he was unable to be present at the lecture. The 



1 ' The Pliocene Deposits of Britain ' Mem. Geol. Surv. 1890. 



2 Proc. Geol. Assoc, vol. xv (1897-98) p. 279. 



