LOCK,RH <br/><br/>
DEPARMENT OF AGRICUTURE NO 23 

 -  1915 
 - 35P. : ill ;    30 cm 
 -  VOLL 7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>11  / M1