THE 



QUARTERLY JOURNAL 



OF 



THE GEOLOGICAL SOCIETY OF LONDON. 



Vol. XXXI. 



1. Geological Notes on the Sinaitic Peninsula and North-western 

 Arabia. By John Milne, Esq., F.G.S. (Read June 24,1874.) 



The journey of which the following is an account, was made in 

 company with the late Dr. Beke in quest of the true Mount Sinai, 

 which mountain he placed in North-western Arabia, about 95 miles 

 in a north-easterly direction from the district in which it has hitherto 

 been conjecturally considered to exist. 



Owing to the rapidity with which the country visited was tra- 

 versed, it would be impossible to connect with accuracy the various 

 observations which were made ; and therefore, rather than at- 

 tempt to construct a series of sections showing the relation of 

 the various formations to each other, I have considered it better 

 simply to indicate the conditions as observed at various points, 

 leaving it for those more conversant with the geology of these districts 

 to connect the following fragments with those already accumulated. 

 For assistance in the determination of the rock-specimens collected, 

 of which 77 are described, 22 of which were examined micro- 

 scopically, I have to thank Mr. Thomas Davies, F.G.S., of the British 

 Museum. 



District visited. — From Suez we went by sea to Eynounah, which 

 lies in the north-east corner of the lied Sea, and then on to Akaba, 

 touching almost daily at some point or other along the coast. From 

 Akaba we took camels, and journeyed some twenty miles in a north- 

 easterly direction up Wady Ithm, in the direction of Petra and Maan. 

 This was the furthest point of our journey. On again reaching 

 Akaba, instead of returning to Suez by sea, as we had come, we 

 reached it by crossing the elevated desert plateau of the Tih. 



Q.J. G. S. No. 121. b 



