Plants which cause hayfever. 

 - Yonkers, N.Y.,  The Arlington chemical company  [1925] 
 - 36 p.  illus.  23 cm. 
<br/><br/> Cover-title. 
<br/><br/><label>LCCN: </label>agr26001282  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hay-fever plants.<br/>Pollen.
<br/><br/><label>LC Class. No.: </label>QK100.U6  / A7