McCorkle, Paul,  1890- <br/><br/>
The physical world / 
Paul McCorkle. 
 - 2d ed. 
 - New York :  McGraw-Hill,  c1956. 
 - 465 p. :  illus. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science.
<br/><br/><label>Dewey Class. No.: </label>500  / MCP 1956