A History of Land Mammals in the West- i 



em Hemisphere 



J 



With many illustrations made from paintings by W. B. Horsfall and others ■ 



By WILLIAM B. SCOTT 

 Blair Professor of Geology and Palaeontology in Princeton University 



Decorated cloth, 8vo, $5.00 



For nearly half a century a constant and ever-widening stream 

 of discovery has brought to Hght a multitude of the animal forms 

 which successively inhabited North and South America, but long 

 ago vanished from the earth. This wonderful mammahan history 

 has been slowly and laboriously deciphered by many workers, and 

 the results of their investigations are scattered widely through the 

 scientific journals of nearly every European language and are thus 

 inaccessible to the general educated public. It is highly desirable 

 to bring together the more significant of these results in a form which 

 shall be intelligible to the reader who is interested in the progress of 

 science, but cannot make use of technical papers. After a discussion 

 of the methods of investigation, a sketch is given of the geographical 

 history of the western hemisphere and of the mammalian groups which 

 successively inhabited it. This is followed by a series of chapters 

 dealing with the evolution of those land mammals whose history is 

 known, and finally are described the inferences as to the operation 

 of the evolutionary process which may be drawn from the study of 

 these histories. The numerous illustrations by Mr. Bruce Horsfall 

 and Mr. Charles Knight make the marvellous tale of development 

 clear with a minimum of technical description. 



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