THE 



PAST AND PRESENT LIFE 



OP, 



THE GLOBE 



BEING A SKETCH IN OUTLINE 



THE WOBLD'S LIFE-SYSTEM 



BY 



DAVID PAGE, F.G.S. 



AUTHOR OF " INTRODUCTORY AND ADVANCED TEST-BOOKS OF GEOLOGY' 

 " HANDBOOK OF GEOLOGICAL TERMS," ETC. 



WILLIAM BLACKWOOD AND SONS 



EDINBUKGH AND LONDON 



MDCCCLXI 



