Leonard, Jonathan N. <br/><br/>
Exploring Science / 
J.N. Leonard ; Illustrations by L. Darling and I. N. Steinberg. 
 - 1st edt. 
 - Cleveland ;  New York :  World Publishing Company,  1959. 
 - 318 p. :  ill.;  29 cm. 
 - A Rainbow book .
 - A Rainbow book .
<br/><br/>Index, p. 311-318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural sciences