﻿Vol. 6l.] EOCENE AND CRETACEOUS OF THE NILE VALLEY. 



667 



31. The Relations of the Eocene and Ceetaceous Systems in the 

 Esna-Aswan Reach of the Nile Valley. By Hugh John 

 Llewellyn Beadnell, E.G.S., late of the Egyptian Geological 

 Survey. (Read June 21st, 1905.) 



In the autumn of 1904 I had occasional opportunities of examining 

 the desert-margins on both sides of the Nile Valley, between Aswan 

 and Esna. The geological information hitherto published on this 

 part of Egypt l is so scanty that no apology is needed for putting 

 on record the following observations, which, although disconnected, 

 have an important bearing on a somewhat vexed question of 

 Egyptian geology, namely, the mutual relations of the Cretaceous 

 and Eocene systems. 



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[5 miles = approximately 8 kilometres.] 



(1) The Kom-Ombo Plain. 



Erom Aswan to Darau the valley is comparatively narrow. 

 Immediately north of the latter place it opens out, from a narrow 

 gorge closed in by sandstone-hills, to a broad plain bounded by an 

 undulating sandstone -desert on the west side, and by the ordinary 



1 Schweinfurth's paper, ' Am westlichen Kande des Nilthals zwischen Farschut 

 & Kom Ombo' Peterm. Mitth. vol. xlvii (1901) pp. 1-10, records a number of 

 valuable observations on the botany, geology, and archaeology of this part of the 

 Nile Valley. 



Q. J. G. S. No. 244. 3 b 



