U. S. DEPARTMENT OF AGRICULTURE 
BUREAU OF BIOLOGICAL SURVEY 
This book is Government property. The finder 
is requested to mail it to the Bureau op Bio¬ 
logical Survey, Department op -Agriculture, 
Washington, D. C., or deliver it to the official 
whose name appears above. A detachable addressed 
frank will be found on the last page; by tying this 
on the cover the book may be mailed without post¬ 
age or wrapping if fastened shut. 
GOVKR* ttsora 
i»INO QUICK 
8—4925 
