Ticks and Rocky Mountain Spotted Fever of Man 229 



(i) A campaign of education, whereby all the residents of the 

 valley will be made thoroughly familiar with the feasibility of the 

 plan of eradication, and with what it will mean in the development of 

 the valley. 



(2) The obtaining of legislation to make it possible to dip or oil 

 all live stock in the Bitter Root Valley. 



(3) The obtaining of an accurate census of the horses, cattle, 

 sheep, mules, and dogs in the valley. 



(4) The construction of ten or more dipping vats. 



(s) The providing of materials to be used in the dipping mixture. 



(6) The organization of a corps of workers to carry on the opera- 

 tions. 



(7) The systematic dipping of the horses, cattle, sheep, and dogs 

 of the valley on a definite weekly schedule from approximately March 

 10 to June 9. 



(8) The treatment by hand of the animals in localities remote 

 from vats, on the same schedule. 



They estimate that after three seasons' operations a very small 

 annual expenditure would provide against reinfestation of the valley 

 by the incoming of cattle from other places. 



Supplementary measures consist in the killing of wild mammals 

 which may harbor the tick; systematic burning of the brush and 

 debris on the mountain side ; and in clearing, since the tick is seldom 

 found on land under cultivation. 



