HOW TO GET THE 

 LAST TICK 



.• > • , > 



OBSERVATIONS RESULTING FROM 



ACTIVE FIELD EXPERIENCE IN 



TICK ERADICATION 



By 



W. M. MacKELLAR 



Tick Eradication Division 



BUREAU OF ANIMAL INDUSTRY 



U. S. DEPARTMENT OF AGRICULTURE 



WASHINGTON, D. C. 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1922 



