34 PARASITOLOGY. 



in an effort to relieve themselves of the itching sen- 

 sation produced by the lice. Cattle are noted to lick 

 themselves. The hair has a rough, stairy, matted 

 appearance. Dogs scratch and bite themselves, show- 

 ing evidence of great pruritus. The hair becomes 

 matted or scratched off ] and emaciation follows. 

 Sheep and goats show much the same symptoms. 

 In hogs, the animals rub and scratch. Upon close 

 examination the lice and nits can be found. In hogs 

 a favorite place for the lice to deposit their eggs is 

 in the folds of skin posterior to the ears. In later 

 stages the animals may become emaciated. 



Lousiness is noted to be more prevalent in winter 

 and spring, on account of close association of animals 

 during these seasons, and the long hair, which forms 

 a protection for them. 



Treatment. — All quarters, stalls, mangers, harness, 

 blankets, curry-combs, rub-rags, etc., should be dis- 

 infected. If in the spring of the year, the horse may 

 be clipped. 



The animals may be sponged or dipped in any 

 of the following, or in a five-percent solution of cre- 

 olin or kreso : 



^ Tobacco stems 3iv 



Water gal. i 



M. Sig. — Boil for thirty minutes. 



I^ Stavesacre seeds oiv 



Water gal. i 



M. Sig. — Boil for thirty minutes. 



I^ Quassia chips 5iv 



Water i_._gal.i 



M. Sig. — Boil for thirty minutes. 



For hogs, the kerosene emulsion, sprayed on the 



