U. S. DEPARTMENT OF AGRICULTURE, 
division of entomology. 
Bulletin No. 21. 
(Revised Edition.) 
REPORT 
TRIP TO AUSTRALIA 
MADE UNDER DIRECTION OF THE ENTOMOLOGIST 
TO INVESTIGATE THE 
Natural Enemies of the Fluted Scale, 
ALBERT KOEBEEE. 
(PUBLISHED BY AUTHORITY OF THE SECRETARY OF AGRICULTURE.) 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
189O. 
