Existence of Triassic Rocks in the English Channel. 199 



Evidence of glacial action at lower levels (210' to 240', O.D.) is 

 then given, sections being described at Nine- mile Eide (Old Windsor 

 Forest), Wokingham, and Sunninghill, and apparent evidence of 

 glaciation at Bracknell, Warfield, and Finchampstead. Photographs 

 of some of these sections are given, and the levels of the plateau- 

 gravels and the glaciated sections correlated by a sectional diagram. 



The author concludes, from the evidence given in the paper, that: — 



1. The Plateau- gravels are of fluviatile origin, their materials 

 having been transported from the Weald-region to the south. 



2. They mark roughly the ancient lines of Pliocene drainage of 

 an old elevated Tertiary region, the present valley-system having 

 been mainly determined by their absence. 



3. That the modem Lower Thames Valley was initiated in Plio- 

 cene times, the main line of drainage having been somewhat further 

 north than at present. 



4. That attention to altitudes reveals the fact that the present 

 valley-system was outlined and the major part of it actually exca- 

 vated in an interval that intervened between the age of the Plateau- 

 gravels and the Glacial Epoch. 



5. That the deposition of the Plateau-gravels probably covers 

 most of the geologic time represented by the Pliocene. 



A note is added on the probable progressive elevation of the 

 Weald from west to east. 



3. "Further Note on the Existence of Triassic Eocks in the 

 English Channel off the Coast of Cornwall." By E. N. Worth, 

 Esq., F.G.S. 



A specimen of Triassic conglomerate trawled seven miles south 

 of the Deadman headland, and several miles east of the previously 

 recorded Lizard outlier is described, and reasons given for its occur- 

 rence in situ. It contains pebbles of slate, grits, vein-quartz, 

 quartz-felsite, and andesitic rock. 



4. " On a new Species of Coccodus (C. Lindstromi, Davis)." By 

 J.W.Davis, Esq., F.G.S. 



June 4. — Dr. A. Geikie, F.E.S., President, in the Chair. 



The President referred to the sad loss which the Society had 

 sustained through the death of Mr. Dallas, and read the following 

 resolution, which had been passed by the Council and ordered to be 

 entered upon its Minutes : — 



" The Council desires to record on its Minutes an expression 

 of its deep regret at the death of the Assistant- Secretary, 

 Mr. Dallas, which took place on the 29th ultimo, and of its 

 sense of the loss inflicted on the Council and Society by the 

 removal of one who, for the long period of twenty-two years, 

 had done them invaluable service, and who, by his courtesy, 

 kindliness, and helpfulness had endeared himself as a personal 

 friend to the Fellows." 



