Geological Society of London. 45 



completely examined) occur at Crossgates, Walney Island, and Drigg. 

 Another is near St. Bees, which has been more minutely examined ; 

 and yet another near Maryport. These deposits are not, like the 

 Lindal beds, clearly interglacial, but being compact and in other ways 

 differing from the ordinary peaty deposits, are believed by the author 

 to be so ; further, they all rest on Loioer Boulder-clay. 



The author beb'eves that the vegetable matter was not produced 

 in situ, but accuinulated under water. Eootstocks certainly occur 

 in position of growth ; but their roots do not pass down into the 

 underlying Boulder-clay, so they may have floated into this position. 

 The author considers this to throw light on the formation of coal. 



II.— Dec. 1, 1880.— Eobert Etheridge, Esq., F.B.S., President, in 

 the Chair. 



The following communications were read : — 



1. " On Kemains of a small Lizard from the Neocomian Eocks 

 of the Island of Lesina, Dalraatia, preserved in the Geological 

 Museum of the University of Vienna." By Prof. H. G. Seeley, 



r.E.s., E.as. 



The author mentioned that Prof. Kornhuber had described, under 

 the name of Sijdrosaurus hsinensis, the remains of a Lizard from 

 the Neocomian rocks of the island of Lesina, off the coast of Dal- 

 matia. The University Museum at Vienna contains a slab from 

 the locality, showing the hinder part of the skeleton of another 

 Lizard, which, had been lent to the author for the purpose of de- 

 scription by Prof. Suess. The specimen includes twelve dorsal and 

 sixty-five caudal vertebree, but the tail is incomplete. The sacral 

 vertebrae are concealed, and the pelvis is imperfectly seen. Both 

 hind limbs are fairly well preserved. The author described the 

 distinctions which he considered to separate this animal from Korn- 

 huber's species, consisting chiefly in the form and proportion of the 

 dorsal vertebras, which, instead of having the neural spine high and 

 square, as in Hydrosaurus, have it depressed and produced both 

 anteriorly and posteriorly ; in the length and slenderness of the 

 ilium; in the single-headed character of the ribs; and in the form 

 and structure of the segments of the limbs, which appear to possess 

 four tarsal and three metatarsal bones and five digits. The author 

 proposed to name this Lizard Adriosauriis Suessii. 



2. " On the Beds at Headon Hill and Colwell Bay in the Isle 

 of Wight." By Messrs. H. Keeping and E. B. Tawney, M.A., 

 F.G.S. 



The authors criticized the views put forward by Prof. Judd in his 

 paper published in the Q.J.G.S. vol. xxxvi. p. 13, and supported those 

 established by the late E. Forbes and the publications of the Geolo- 

 gical Survey. At the west end of the island, viz. at Totland and 

 Colwell Bays, the authors stated that there is only one marine 

 series, the Middle Headon, which they traced continuously through 

 the cliffs — identifying it bed by bed at various points — the result 

 entirely corroborating the sections of the Geological Survey. The 



