Correspondence — A. K. CootnarasiDamy. 23^ 



of furnishing abundant material, not only for the Ordovician pebbles 

 of the Budleigh Salterton Pebble-Bed, but also for a great deal 

 more. A list of species common to the Gres de May, of May itself, 

 and the Budleigh Salterton deposit is given ; and it is pointed out 

 that in the Department of the Manche the former deposit varies in 

 paleeontological facies. In addition to the identity of the quartzites 

 and felspathic grit in the two areas, it is noted that the so-called 

 lydianstone (tourmaline-grit) of Budleigh and the Midlands may 

 be paralleled with one referred to by MM. de Tromelin and 

 Lebesconte in the Department of Maine-et-Loire. The author is 

 struck with the resemblance of the Midland Bunter to that of 

 Devon, and he gives the percentage of rock-types in the larger 

 pebbles at Eepton and in the smaller material of Drift derived from 

 the Bunter at two localities in the Lickey Hills. Strong family 

 likenesses subsist between certain specimens in the northern and 

 southern Bunter and some of the undisturbed rocks of Normandy. 

 A list of fossils from the Midland Bunter contains three southern 

 forms ; and a further table is given comparing fossils from Drift- 

 pebbles from Budleigh Salterton and from Normandy. Fourteen 

 out of twenty of the Drift and Bunter fossils ai"e found at Budleigh 

 Salterton and in Normandy. The hypothesis which presents the 

 least difficulty appears to be that which regards the two pebbly 

 deposits, north and south, as having had approximately a common 

 origin. It does not necessarily follow that both deposits are due 

 to the same river. 



2. "Note on the occurrence of Keisley Limestone Pebbles in the 

 Red Sandstone Eocks of Peel (Isle of Man)." By E. Leonard Gill, 

 Esq., B.Sc. (Communicated by Prof. W. Boyd Dawkins, D.Sc, 

 r.E.S., F.S.A., F.G.S.) 



Pebbles of a coarsely crystalline, greyish-white, mottled lime- 

 stone, collected by Prof. W. Boyd Dawkins from the conglomerates 

 at Whitestrand, contain the following fossils : IUcbuus Bowmanni, 

 var. brevicapitatiis, Primitia Maccoyi, OrtJiis calligramma, 0. testudi- 

 naria, 0. biforata, Rafinesqiiina deltoidea, Plectamhonites quinque- 

 costata, Atry]pa expansa, Hyatella Portlockiana, Dayia pentagonalis, 

 Platyceras verisimile, Stenopora fibrosa, and crinoid stems. This 

 assemblage of fossils corresponds strikingly with that of the Keisley 

 Limestone ; and it is therefore concluded that the pebbles have been 

 derived from that rock. It seems hardly likely that they have come 

 from so distant a locality as the Lake District ; more probably there 

 has been a local source, which would form a link between the lime- 

 stone of Keisley and that of the Chair of Kildare. 



00I^I^:ESI='01f3"ID IE ISTGE. 



THE GEOLOGISGHES CENTRALBLATT. 

 Sir, — Dr. Keilhack's invitation to authors to supply their own 

 abstracts comes none too soon ; it is to be hoped that this plan will 

 prevent the mistakes which are apt to occur under the present regime. 

 In the current number (March) two papers by myself on the 

 ■Crystalline Limestones of Ceylon are reviewed. The abstract of 



