Shepherd, Walter. <br/><br/>
A new survey of science 
a revised and enlarged edition of Science marches on. 
 - New York  Harcourt, Brace  [1950] 
 - 511 p.  illus.  22 cm. 
<br/><br/><label>LCCN: </label>50005930  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--History.
<br/><br/><label>LC Class. No.: </label>Q125  / .S52 1950 
<br/><br/><label>Dewey Class. No.: </label>509