INTRODUCTTOX. 
xxviii 
From the foregoing summary it will be seen that Africa appears to offer a most 
promising field for the Vertebrate Palueontologist, and it is greatly to be desired that 
travellers, whether geologists or not, should observe and record the position of any 
beds that contain bones, even if mere fragments only are found. 
In conclusion, I wish to express my sincere thanks to Captain II. G. Lyons, Director- 
General of the Egy])tian Survey, for kindly allowing me to describe the Vertebrate 
remains preserved in the Geological Museum, Cairo, in conjunction with those in the 
British INluseum, and by so doing to increase very greatly the value of the present 
volume. I am also greatly indebted to him for valuable advice and assistance in 
arranging my own collecting-expeditions. Best thanks are also due to Mr. W. E. de 
Winton, whose generosity made my visits to Egypt in 1903 and 1904 possible. I am 
indebted to Dr. W. F. Hume, of the Geological Survey of Egypt, for much help when 
working ill the Museum at Cairo, and to Mr. II. J. L. Beadnell, late of the same 
service, for the privilege of accompanying him on his visit to the Fayiini in 1900, 
and for much help subsequently in working my own collecting-expeditions. Thanks 
are also due to Mr. C. Davies Sherborn, who kindly volunteered to make the Index 
to this volume ; to the Council of the Zoological Society and the Editors of the 
Geological Magazine for the loan of illustrations ; and, finally, to Mr. F. O. Barloiv 
for his help in collecting in the early part of 1903, for the subsequent successful 
preparation of the specimens obtained, and also for the preparation of excellent models 
of the restored skulls and mandibles of Mceritherium and Paheomastodon. 
ciiaiu.es av. andreavs. 
Sketch or AiisixoirnEHivM zitteli, restored. 
