OEDINAEY MEETING* 



Captain E. W. Creak, C.B., F.R.S., in the Chair. 



The Minutes of the last Meeting were read and confirmed. 

 The following candidate was elected : — 

 Member : — E. F. Frost, Esq., West Wratting. 

 The following paper was read hy the author : — 



ON THE ORIGIN OF THE MARINE {HALOLIMNIG) 

 FAUNA OF LAKE TANGANYIKA. By W. H. 

 HuDLESTON, Esq., M.A., F.R.S. (Vice-President). 



[With Two Plates.} 



CONTENTS. 



Part I. — General Considerations : Zoology and Palaeontology. 

 Introductory. 



History of the subject and statement of Mr. Moore's views. 

 The argument limited to the halolimnic gasteropods — Appendix on the 

 Conchology. 



Distribution of Jurassic faunas in intermediate areas — African Jurassics. 

 Character of freshwater faunas. 



On the possible transference from marine to freshwater conditions. 

 Jurassic fossils of the Mediterranean basin. 



Part II. — Outlines of African Geology. 

 The three principal geographical divisions. 



The Plateau -range of East Africa (the Great Central Range of 



Mr. Moore). 

 Geology of British East Africa. 

 Geological structure of the Congo basin. 

 The periphery of the Congo basin. 



Suggested correlation of the beds composing the interior of the basin. 

 Structure of a Graben. 

 Geology of Lake Tanganyika. 



Part III. — Conclusions. 



1. The zoological aspect. 



2. The palseontological evidence. 



3. The argument from geology. 



* Wednesday, May 25th, 1904. 



