Geological Society of London. 93 



Senonian age, and the underlying Nodular bed to the Gault, whilst 

 he regarded the Sandstone at the base as probably Neocomian. 



Mr. Medlicott, Director of the Geological Survey of India, in com- 

 pliance with the author's request, had sent to him the Echinoidea 

 collected by all the geologists named, and, on examination, the 

 collection was found to comprise the following eight species : — 

 Cidaris, sp. nov., Salenia Fraasi, Cijplwsoma cenomanensis, OrtJiopsis, 

 sp. nov., Echinobrissiis Goybeti, Niicleolites similis, var., Hemiaster 

 cenomanensis, and H. similis. All the known forms wore found in 

 beds of Upper Greensand age in the Lebanon, Europe, etc., except 

 the Nucleolites, which was a Chloritic-marl species. Of the eight 

 species all were found in the Argillaceous limestone, five in the 

 Coralline, and two in the Nodular limestone, the last two, Hemiaster 

 cenomanensis and H. similis, occurring throughout. Under these 

 circumstances there appeared no reason for assigning the beds of 

 limestone to different stages of the Cretaceous sj^stem. 



3. " On some Dinosaurian Vertebrae from the Cretaceous of India 

 and the Isle of Wight." By E. Lydekker, Esq., B.A., F.G.S. 



The author, in 1877, described some Dinosaurian caudal vertebrse 

 and a femur from the Lameta beds of India (Middle or Upper 

 Cretaceous), and as he was unable to find any described forms that 

 resembled them, he proposed for them a new genus, which he called 

 Titanosaurus. Two species were represented. After noticing the 

 principal characters of the Indian specimens, he showed that some 

 caudal vertebras in the British Museum, collected by the late Mr. 

 Fox from the Wealden of Brook, in the Isle of Wight, agreed in 

 form with those found in India, and were, in fact, intermediate in 

 some respects between the two Indian species. An inquiry into the 

 associated remains at Brook indicated that the caudal vertebrae in 

 question probably belonged to Ornithopsis, and this probability was 

 supported by the structure of certain American fossil genera placed 

 by Marsh in the same suborder, Sauropoda, of the Dinosauria. In 

 any case there is great probability that at least one of the Indian 

 and the Isle of Wight vertebree should be referred to the same genus. 



Some other instances of fossil vertebrates appearing in Indian beds 

 of a rather later geological age than in Europe were noticed. 



4. " Further Notes on the Eesults of some Deep Borings in Kent." 

 By W. Whitaker, Esq., B.A., F.G.S. 



This paper contained some details on the borings at Chattenden 

 Barracks and at the Dover Convict Prison, in addition to those 

 already published in the Quarterly Journal of the Society for 1886. 

 Sections of the new borings, one at Strood, the other at Lydd, were 

 also given. — The Chattenden boring has been successful in reaching 

 the Lower Greensand, and a supply of water had been obtained. 

 This result showed that on the section accompanying the previous 

 paper the beds of the Lower Greensand should have been carried 

 rather further to the northward. — The Dover boring was abandoned 

 at 931 feet from the surface. The examination of the specimens 

 showed that the thickness formerly assigned to the Lower Greensand 

 should be reduced to 31 feet, the upper five feet referred to that 

 stage belonging to the base of the Gault, whilst the bottom, 13 feet, 



