Schwartz, Julius,  1907- <br/><br/>
Through the magnifying glass :  little things that make a big difference / 
by Julius Schwartz 
 - New York :  Whittlesey House,  1954 
 - 142 p. :  ill. ;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 2.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Juvenile literature<br/>Nature study<br/>Lenses
<br/><br/><label>Dewey Class. No.: </label>372.3