CONTENTS. 



PAET I. 



PAGE 



Personal Nareatitb . . 1 



PAET II. 



GEOLOGY. 

 Introbuction 143 



BBCTION 



I. — Physical Geography of Abyssinia, and its Relations to the 

 Geology, with Remarks on Denudation and on Lake 



Ashangi . . 151 



II. — List of Geological Formations 162 



III. — Metamorphics ... 164 



IV. — Adigrat Sandstones 170 



V. — Antalo Limestones 176 



VI. — Trappean Series ' 181 



VII.— Aden Series of Volcanic Rocks 190 



VIII. — Recent Formations 194 



Appendix. — Descriptions of the New Species of Fossils from the 



Antalo Limestone 199 



