﻿320 Geological Society. 



November 23, 1870. — Joseph Prestwich, Esq., F.B.S., President, 

 in the Chair. 



1. " On some points of South-African Geology." — Part I. By 

 G. W. Stow, Esq. 



In this paper, which was illustrated by numerous sketches, sec- 

 tions, tables, and specimens, observations were made on the stratifi- 

 cation of the Jurassic beds of Sunday's and Zwartkop's rivers, re- 

 sulting from researches made by Mr. Stow, with the view of deter- 

 mining the exact position of the several species of fossils found at 

 the exposures on the cliffs of these rivers, and from this the se- 

 quence of the various beds. He indicated the existence of at least 

 nine separate fossiliferous bands, pointing out the relative positions 

 of the several Trigonia-heds, Hamite-beds, Ammonite-beds, &c. 



He next treated of the so-called Saliferous beds of the district, 

 and gives his reasons for regarding them as later in age than the 

 Trigonia-sandstoiies above alluded to, and therefore not equivalent 

 to that part of the series named " Wood-beds " by Dr. Atherstone. 



Other researches of the author related to the Tertiary beds both 

 inland and on the coast. He distinguished three zones on the coast 

 later in date than the high-level shell limestones (Pliocene ?) of the 

 Grass Eidge and other parts of the interior. One of the coast- 

 zones he named the AJcera-hed, from the prevalence of a delicate 

 species of that genus. Another zone was described as following the 

 river- valleys in the form of raised terraces, characterized by the 

 presence of a large Panopcea. The latest shell-banks have been 

 thought to be Kitchen-middens ; but the author regarded them as 

 shore-deposits in place. The author concluded by tracing the pro- 

 bable climatal and geographical changes in this region during geo- 

 logical times, and indicated, as far as his material allows, the pro- 

 bable migrations of the Mollusca, especially of the Venerwardia 

 characterizing the Pliocene Limestone. 



2. " Note on some Beptilian Eossils from Gozo." By J. W. 

 Hulke, Esq., F.E.S., F.G.S, 



The author described the remains of two reptiles said to have 

 been brought from Gozo by the late Captain Strickland. One of 

 them was a fragment of the symphysial part of the slender mandible 

 of an Ichthyosaurus, having teeth of precisely the same character as 

 those of the form from the Kimmeridge Clay described by the 

 author under the name of EntheModon. For this species the name 

 of Ichthyosaurus gaudensis was proposed. The other was the skull 

 of a species of Crocodile, for which the author proposed the name 

 C. gaudensis. 



3. " On the discovery of a * Bone-bed' in the lowest of the 

 ' Lynton Grey Beds,' North Devon." By F. Eoyston Fairbank, M.D. 



In this paper the author called attention to the occurrence of a 

 thin bed of rock to the west of the harbour of Lynmouth, containing 

 an immense number of fragments of bone, some of them of large 



