Smith, Ella Thea.  <br/><br/>
Exploring biology :  the science of living things / 
Ella Thea Smith. 
 - 5th ed. 
 - New York :  Harcourt, Brace and Company,  c 1959. 
 - 731 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>71  71 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>Dewey Class. No.: </label>574 / S55e