Craig, Gerald S. <br/><br/>
Exploring in science /  Gerald S. Craig and Beatrice Davis Hurley,  

 - New York :  Ginn,  c 1950. 
 - 317 p. :  ill. ;  21 cm. 
<br/><br/> Includes Index. 
<br/><br/>326  326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>science.<br/>Exploration.
<br/><br/><label>Dewey Class. No.: </label>500 / E844c