220 GRAVEL AT MORETON-IN-THE-MAESH. [May 1 899, 



13. Geavel at Moreton-in-thb-Maesh (Glottcesteeshiee). 

 By 8. S. Efckman, Esq., F.G.S. (Eead February 1st, 1899.) 



[Abstract.] 



The Author describes certain gravels of Triassic debris and flints 

 at Moreton-in-the-Marsb, with special reference to an upper bed 

 wherein the fragments are mostly in a vertical position, some of 

 them having their heavier ends uppermost. He theorizes that the 

 vertical materials were the droppings from melting ice floating 

 down a large river. This river, formed out of one or more of the 

 original consequents of the Thames system, existed before the valley 

 of the Warwickshire Avon had been excavated. By one branch, 

 possibly the upper Trent, it drained the Pennine range ; by another, 

 possibly the upper Severn, the Welsh hills. Ice formed in the 

 upper waters — in these highlands — enclosing debris, and when a 

 thaw occurred, it floated down to the lower parts of the river. 



The Author notices certain flints obtained from the gravels. 

 Those from the upper bed are sharply angular, even most finely 

 pointed, and are quite unabraded. They strengthen the theory of 

 ice-transport, and it is evident that they have not been moved by 

 stream-action since their deposition, otherwise they would show 

 signs of wear. The flints from the lower bed do seem to point to 

 some such condition of subsequent removal : they have their edges 

 worn, and are in some cases battered, and peculiarly flaked as if 

 artificially worked. 



The Author surmises that the date of the gravel, if formed by 

 a river-system as supposed, is Pliocene. 



14. On the Occuerence of Peebles of Schoel-eock fro7n the South- 

 west of England in the Deipt-deposits of Southeen and 

 Easteen England. By A. E. Saltee, Esq., B.Sc, E.G.S. 

 (Head February 1st, 1899.) 



[Abstract.] 



A SET of twelve representative specimens, consisting essentially of 

 quartz and tourmaline, have been examined by Prof. Bonney, who 

 informs the Author that they consist mainly of felspathic grits, 

 schorl-rock, etc., similar rocks to which occur in the South-west 

 of England. The most westerly point at which the pebbles have 

 been detected is on Great and Little Haldon Hills, 800 feet above 

 Ordnance datum, where they are of larger size, more abundant, and 

 coarser-grained than elsewhere. Thence they are traced to the 

 north and south sides of the Thames Basin, and into East Anglia at 

 Walton-on-the-Naze, Aldeburgh, etc. There is a general decrease 

 in height in the deposit in which the pebbles occur, in passing from 

 west to east, and the pebbles appear to have taken two main 



