Reports and Proceedings — Zoological Society of London. 279 



are thus very welcome, and M. Priem's recent paper on teeth and 

 other fragments from the phosphatic chalk of Peronne, Somnie 

 (zone of Belemnitella quadrata), is an interesting contribution of this 

 kind. The author is a pupil of Prof. Gaudry, and has determined 

 the specimens in the Laboratory for Palaeontology in the Jardin des 

 Plantes, Paris. The species represented are Ptychodus latnsimus, 

 Oxyrhina Mantelli, Lamna appendiculata, Scapanorhynchus (Odon- 

 taspis) rhaphiodon, S. ? (0.) subulatus, Gorax pristodontus, and 

 a form of Protosphyrcena, possibly P. ferox. The two illustrative 

 plates are beautiful photographs of the actual fossils. 



BEPOET3 J^ISTID IPJR.OCIEJKilDIiriT'a-S. 



Zoological Society of London. 



March 17th, 1896.— Prof. G. B. Howes, F.Z.S., in the Chair. 



Mr. A. Smith Woodward, F.Z.S., read a paper on some extinct 

 fishes of the Teleostean family Gonorhynchidae. He described 

 a new specimen of Notogoneus oscnlus from the Eocene (Green 

 Kiver Shales) of Wyoming, U.S.A., confirming Cope's determination 

 of this fish as a member of the family Gonorhynchidae. He also 

 pointed out that the so-called Sphenolepis squamosseus and S. Guvieri, 

 imperfectly described by Agassiz from the Eocene of France, are 

 generically identical with Notogoneus. In proof of this identification, 

 he gave an account of new specimens in the British Museum. The 

 Gonorhynchidae were thus shown to have comprised fresh- water 

 fishes in the early Tertiary period both in Europe and North 

 America. 



Geological Society of London. 



I.— April 15th, 1896.— Dr. Henry Hicks, F.R.S., President, 

 in the Chair. 



The President announced that a portrait in sepia of Prof. Bonney, 

 executed by Mr. Trevor Haddon, had been presented to the Society 

 by 34 subscribers, Fellows of the Society. 



The following communications were read : — 



1. "The Junction-Beds of the Upper Lias and Inferior Oolite in 

 Northamptonshire. — Part I. Physical and Chemical." By Beeby 

 Thompson, Esq., F.G.S., F.C.S. 



The author, while combating the view that a considerable 

 unconformity exists between the Upper Lias and the Inferior Oolite 

 of Northamptonshire, brings together much evidence to illustrate 

 the effects of slipping, and to show that these effects may be mistaken 

 for those of unconformity. He also applies the evidence which he 

 has collected to illustrate certain points in the physics of valley- 

 formation. 



After giving details as to the horizon of the springs of the district, 

 the distribution of water in the Inferior Oolite, and the development 



