250 Dr. W. F. Hume — Miocene Rocha in Edsfeni Sinai. 



Plate IX. 



■Clavulina Soldanii. FiG. 10. — Nodosaria obliqua. 



-Reophax scorpiurus. ,, 11. — Nodosaria soluta. 



-Cyclamina deformis. ,, 12. — Cristellaria rotulata. 



-Miliolina macilenta. ,, 13. — Cristellaria aculeatu. 



-Spiroloeulina teniiiseptata. ,, 14. — Uvigerina raphaniis. 



-Textularia sagittula. ,, 15. — Planorbulina elegans. 



-Textularia carinata. ,, 16. — PnlvinuUna elegans. 



-Textularia trochus. ,, 17. — Textularia aspera. 



-Nodosaria raphanistrum. ,, 18. — Textularia granien. 



II. — Occurrence of Miocene Eocks in Eastern Sinai.' 



By W. F. HoiE, D.Sc. (Lond.), A.E.S.M., F.G.S. 



rpHE study of Egyptian geology during the last few years has 

 \_ thrown a flood of light on the foi*mer extension of the 

 Mediterranean southward in Miocene times. Th. Fuchs,^ in 

 examining the rich collections from the Cairo-Suez desert and 

 the oasis of Sivvah, recognized that the Miocene strata had a close 

 resemblance to those of the Vienna Basin, and corresponded to 

 the Grunder Beds at the base of the second Mediterranean stage, 

 or the lower portion of the Middle Miocene. Later L. H. Mitchell,* 

 when studying the neighbourhood of Eas Jemsa and Jebel Zeit 

 in 1887, obtained a number of large oysters, which Meyer-Eymar 

 recognized as Ostrea crassissima and Ostrea gigantca, and which 

 were regarded as proving the existence of strata of Upper Miocene 

 age along the western border of the Suez Gulf. From these results 

 Blanckenhorn ^ concluded that the Gulf of Suez must have been 

 a Mediterranean bay in Miocene times, and further noted (Zeitsch. 

 Deutsch. Geo]. GeselL, Band liii, 1901, p. 79) that characteristic 

 Miocene Pectens, viz. Pecten Sub-Malvince, occurred in the collection 

 made by Barron at Abu Sha'ar. He further formed the opinion 

 that all the marine Miocene strata in Egypt were of the age assigned 

 to them by Fuchs (see also Barron & Hume, " Miocene Eocks in 

 Eastern Desert," Memoir of Egypt. Geol. Surv., 1902, pp. 159-165). 

 Strata of similar age were first found in the Sinai Peninsula by 

 Bauerman in 1868 ('•' Note on a Geological Eeconnaissance in Arabia 

 Petreea," Quart. Journ. Geol. Soc, xxv, pp. 24 and 37), and were sub- 

 sequently examined by Eothpletz (" Stratigraphisches von der Sinai- 

 Halbinsel," N. Jahrb. fiir Min., 1893, i, p. 103) and Blanckenhorn 

 (Zeitsch. Deutsch. Geol. GeselL, Bd. liii, 1, 1901, p. 75), the latter 

 tracing them from Wadi Gharandel to the mouth of Wadi Tayiba. 

 "When examining the southern end of Eastern Sinai, the present 



1 Published by permission of Sir W. Garstin, Under-Secretary of State for Public 

 Works, Egypt, and Captain H. G. Lyons, K.E., Director- General Survey Depart- 

 ment, Cairo. 



^ Th. Fuchs, " Beitrage zur Kenntuis der Miocaenfauna, etc.," in Zittel, 

 " Erforschung der Libyschen Wiiste," p. 36. 



* L. H. Mitchell: "Eas Gemsah and Jebel Zeit: Eeport on their Geology and 

 Petroleum"; Cairo, 1887. 



* M. Blanckenhorn, "Die Strucktuiiiuieu Syriens und des Eothen Meeres": 

 Eichthofen Festschrift, Berlin, 1893. 



