\^0'^ U. S. DEPARTMENT OF AGRICULTURE, 



/)1SC BUREAU OF ANIMAL INDUSTRY. 



D. E, SALMON, D. V. M., Chief of Bureau. 



CAJTLE TICK 



(Ixocloidea) 



OF THE 



UNITED STATES 



D. E.JALMON, I). V. M., 



Chief of Bureait of Animal Industry, 



AND 



CH. WARDEU STILES, Ph. D., 



Zoologist of Bureau of Animal Industry. 



[Reprinted from the Seventeenth Annuai. Report of the 

 Bureau of Animai, Industry (1900)]. 



WASHINGTON : 



GOVERNMENT PRINTING OFFICE, 

 1902. 



