U. S. DEPARTMENT OF AGRICULTURE, 
BUREAU OF ENTOMOLOGY—BULLETIN No. 72. 
L.O. HOWARD, Entomologist and Chief of Bureau. 
INFORMATION CONCERNING 
THE NORTH AMERICAN FEVER TICK, 
WITH NOTES ON OTHER SPECIES. 
1B Ne 
W. D. HUNTER anp W. A. HOOKER. 
IssuED NOVEMBER 2, 1907. 
ees 
IN 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
OTE. 
