"KNOWLEDGE" SERIES. 



LIFE AND ROCK: 



A COLLECTION OF ZOOLOGICAL AND 

 GEOLOGICAL", "ESSAYS. 



BY R. LYDEKKER, B.A. Cantab., F.G.S., F.Z.S., 



AUTHOR OF "PHASES OF ANIMAL LIFE" AND "HORNS AND HOOFS"; 

 JOINT -AUTHOR OF "THE STUDY OF MAMMALS " AND 



" A MANUAL OF PALEONTOLOGY"; EDITOR AND 



CHIEF AUTHOR OF "THE ROYAL NATURAL 



HISTORY," ETC., ETC. 



NUMMULITE, 



THE UNIVERSAL PRESS, 326, HiaH HOLBORN, W.C. 



1894. 



