THE =GEOGRAPHY AND GEOLOGY= OF =SOUTH-EASTERN EGYPT.= PLATE I. [Illustration: OROGRAPHICAL MAP OF SOUTH-EASTERN EGYPT. Ball. Geography & Geology of South-Eastern Egypt. Photo-Metal-Process. Survey Dept. Cairo 1910. (60-190)] MINISTRY OF FINANCE. * * * * * SURVEY DEPARTMENT, EGYPT. * * * * * THE GEOGRAPHY AND GEOLOGY OF SOUTH-EASTERN EGYPT. BY =JOHN BALL, Ph.D., D.SC.,= F.G.S., A.R.S.M., M.INST.C.E. [Decoration] CAIRO: GOVERNMENT PRESS. * * * * * To be obtained either directly or through any Bookseller, from the PUBLICATIONS OFFICE, Government Press, Bulaq; from the SALE-ROOM, Geological Museum, Ministry of Public Works Gardens; or from the SURVEY DEPARTMENT, Gîza (Mudiria). * * * * * 1912. =PRICE 40 P.T.= =PREFACE.= * * * * * This book is an attempt to give a systematic account of the geography and geology of South-Eastern Egypt according to the latest information available. It is based on surveys which I carried out by order of the Egyptian Government during the four years 1905-1908, and has been written in the intervals of other official work during the succeeding three years. In the first or introductory chapter, I have given a summary, with some criticisms, of previous accounts of the region. This seemed advisable in that the literature, although not very extensive, is scattered in books and papers in various languages, and is not always easy of access. The second chapter is a concise systematic account of the district, designed mainly as a summary for those who do not wish to go into the details; it also contains sections dealing with matters of insufficient importance, or of which our knowledge is too scanty, to be treated of specially in the succeeding chapters.