Van Nostrand's scientific encyclopedia;  aeronautics, astronomy, botany, chemistry, engineering, geology, mathematics, medicine, mineralogy, navigation, physics, zoology. 

 - New York,  D. Van Nostrand company, inc.  [c1938] 
 - 4 p. l., 1234 p.  illus., 2 col. pl. on 1 l., diagrs.  28 cm. 
<br/><br/><label>LCCN: </label>38008703  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Dictionaries.
<br/><br/><label>LC Class. No.: </label>Q121  / .V3 
<br/><br/><label>Dewey Class. No.: </label>503