Simpson, George Gaylord, 1902-  Simpson, George Gaylord, 1902- <br/><br/>
The meaning of evolution. 

 - A special rev. and abridged ed. 
 - [New York] :  New American Library,  [1959] 
 - Mentor book .
<br/><br/>Includes bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution.