The physical sciences / 
George S. Eby...[et al.]. 
 - New York :  Ginn and company,  c 1946. 
 - vi, 495 p. :   ill. ;  26 cm. 
<br/><br/> Includes index.  
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical sciences.
<br/><br/><label>Dewey Class. No.: </label>500 / E97p