Persing, Ellis C. <br/><br/>
Elementary science by grades ...  a nature study and science reader, 
by Ellis C. Persing ... and Elizabeth K. Peeples ... colored illustrations by R. Bruce Horsfall. 
 - New York,  D. Appleton and company  [c1928-30] 
 - 6 v.  fronts. (v.2-3) illus. (part col.) col. plates.  20 cm. 
 - Elementary science by grades. .
<br/><br/> "Edited by F. W. Ballou."  Books 2-6 have subtitle: A nature study and science reader. 
<br/><br/><label>LCCN: </label>e  29000173  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Juvenile literature.<br/>Readers--Science.
<br/><br/><label>LC Class. No.: </label>Q161  / .P45