International Science 



THE 



ANCIENT LIFE-HISTORY 



OF 



THE EARTH 



A COMPREHENSIVE OUTLINE OF THE PRINCIPLES AND LEADING 

 FACTS OF PALAEONTOLOGICAL SCIENCE 



BY 



H. ALLEYNE NICHOLSON 



M. D M D.Sc., M.A., PH.D. (Gorr.), F. R. S.E., F. L. S. 



PROFESSOR OF NATURAL HISTORY IN THE 

 UNIVERSITY OF ST. ANDREWS 



TIbe TKHerner Company 



JBoofe Manufacturers 



Bfcron, bto 



LIBRARY 



UNIVERSITY OF CALIFORNIA 

 DAVIS 



