Comments on The Age of Mammals 



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

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

 mals,' expectations have been more than realized." — S. W. Williston, in 

 Science, Feb. 17, 1911. 



"Dr. H. F. Osborn is a great palaeontologist; in this book he has gathered 

 together the work of a lifetime, and that work, besides being original and con- 

 structive, is also critical and selective. The result is a great book." " While it 

 is an incomparable text-book, a work of reference to the student, and, no doubt a 

 fruitful field for the controversialist of the future, it is a work which can be read 

 with interest and satisfaction by the ' genial omnivore,' as Huxley called him, the 

 general reader." — The Field, Jan. 7, 191 1. 



" It is in the best sense a source book, for it gives at first hand, from the 

 original material, the ideas of an acknowledged master in mammalian palaeon- 

 tology." " It has the clarity and directness of style so welcome, and rare, in such 

 a book." — E. C. Case, in Bulletin American Geographical Society, ]\\[y, 191 1. 



" 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., 191 1. 



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

 et aussi fiddle que possible des faunes de Mammif^res fossiles qui se sont succdd^ 

 dans I'h^misphfere Nord pendant I'fere tertiaire. Et j'ai plaisir k dire tout de 

 suite qu'il y a parfaitement r^ussi." — M. Boule, in Mouvement Scientifiqtte, 

 191 1, p. 569. 



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

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

 adapted to school and college use, and is abundantly illustrated." — Education, 

 Boston, Jan., 191 1. 



"One of the most notable books on evolution since the appearance of Darwin's 

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



"Nejlepsl soucasny palaeontolog americky, Henry Fairfield Osborn, vydal 

 nedkvno s titulem tuto citovanym znamenite psanou a pekne vypravenou knihu o 

 ' veku ssavcu.' " — F. Bayer in Vestniku Ceske Akademie cisare FrantiSka Josef a 

 pro vedy, slovenost a uineni. — Rocnik XX, 191 1. 



" Written with clearness and vivacity, most admirably illustrated, especially by 

 the ' restorations ' of Mr. Knight, and illuminated by maps. Professor Osborn 

 builds, page after page, his story-mosaic. . . . The reader will soon discover 

 that he is a brilliant generalizer, possessed of material gathered from all around the 

 globe, fructifying his knowledge by the exercise of a constructive imagination^ 

 and expressing his facts and ideas in a literary style, clear, vigorous, and enter- 

 taining."— The Literary Digest, Feb. 4, 191 1. 



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