ORDINARY MEETING.* 



Surgeon-General Sir C. A. Gordon, K.C.B., Q.H.P., in 

 THE Chair. 



Tlie Minutes of the last Meeting were read and contirmed, and the 

 following Elections were anjiounced :— 



Members :— Eev. P. Prescott, M.A., Oxon, Middlesex ; Rev. B. N. 

 Switzer, M.A., Middlesex. 



Associates : — M. V. Portman, Esq., Andaman Islands ; Mrs. A. Dii 

 Sautoy, Middlesex. 



The following paper was read by the author : — 



ON THE PHYSICAL CONDITIONS OF THE 

 MEDITERRANEAN BASIN, WHICH HAVE 

 GIVEN RISE TO A COMMUNITY OF SOME 

 SPECIES OF FRESH-WATER FISHES IN 

 THE NILE AND THE JORDAN BASINS. By 

 Edward Hull, M.A., LL.D., E.R.S., F.G.S. (With Map.) 



SOME years ago I brought before one of the sections of 

 the British Association, a paper in which I endeavonred 

 to account for the origin of tlie pecuHar forms of some of the 

 fishes of the Lake of Tiberias which have been recognised 

 by Lortet, Tristram, and others.f I suggested that these 

 special forms were the modified descendants of those which 

 had inhabited it at the time, namely, the Eocene, when the 

 whole region Avas occupied by the waters of the ocean, and 

 that upon the elevation of the land of Western Palestine, and 

 the formation of the Jordanic depression during the Miocene 

 and Pliocene periods, these ancestral forms were imprisoned 

 within the waters of the inland lake thus formed. It 



* 11th of 30th Session. Paper as finally passed for press. 

 t 0/1 the origin of the fishes of the Sea of Galilee, Eep. Brit. Assoc. 

 1885, p. 1066. 



