The Age of Mammals in 

 Europe, Asia, and North America 



By HENRY FAIRFIELD OSBORN 



A.B., Sc.D. Princeton, Hon. LL.D. Trinity, Princeton, Columbia, Hon. D.Sc. 



Cambridge University, Hon. Ph.D. University of Christiania, 



President American Museum of Natural History, 



President New York Zoological Society 



Illustrated by 232 Halftone and Other Figures, including 

 Numerous Maps, Geological Sections, Field Views, and 

 Reproductions from Photographs of Mounted Fossil Skele- 

 tons and of the Famous Restorations by Charles R. Knight 



Decorated cloth, 8vo, $4.50 net 

 COMMENTS 



" Students of palaeontology have awaited impatiently the past few years a 

 promised work on extinct mammals by Professor Osborn. In his 'Age of 

 Mammals,' expectations have been more than realized." S. W. WILLISTON, 

 in Science, Feb. 17, 1911. 



" A book of the utmost value to the student and teacher of mammalian 

 life and likewise to the serious reader." American Journal of Science, 

 Feb., 1911. 



" M. Osborn . . . devait s'attacher a nous presenter le tableau aussi 

 complet et aussi fidele que possible des faunes de Mammiferes fossiles qui se 

 sont succede dans I'hemisphere Nord pendant 1'ere tertiaire. Et j'ai plaisir a 

 dire tout de suite qu'il y a parfaitement reussi." M. BOULE, in Mouvement 

 Scientifique, 1911, p. 569. 



"Professor Osborn has produced a book which will appeal to the learned 

 specialist and to the thoughtful general reader as well." "The work is well 

 adapted to school and college use, and is abundantly illustrated." Educa- 

 tion, Boston, Jan., 1911. 



" One of the most notable books on evolution since the appearance of 

 Darwin's 'Origin of Species.' " Forest and Stream, Dec. 10, 1910. 



" Nejlepsi soucasny paloeontolog americky, Henry Fairfield Osborn, vydal 

 nedavno s titulem tuto citovanym znamenite psanou a pekne vypravenou 

 knihu o ' veku ssavcu.' " F. BAYER in Vestniku Ceske Akademie cisa"re 

 Frantiska Josef a pro vedy, slovenost a unieni. Rocnik XX, 1911. 



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