Geolocic.vl op the Fatijm Depression (taken from pi. xvii. of IT. J. L. CeaclueH's lieport on the Topography and Geolog\- of the 
Fayum Province : Survey Dept., Cairo, 190o). Tlie crosses mark some of the chief localities from vvhich Upper Eocene Ycrtebrates 
have been collected. Heights are given in metres. 
li 
INTllODUCTION. 
