The Maryland Farm gives the followinir U8cful recipe for exterminatin;; fleaa : The oil of periny royal will coitainly drivi ',ii'-. ImtaMienpprjnethod, ivl-pi( the herb flourishes, is to throw yotir dogs and catg into a decoction of it once a weck. 11 ow the Leiband scatter it in the beds of the pigs once a month. Wiere the herb cannot be got, the oil may be procured. In this case saturatr; strings ivith it and tie thom around the nocks of dogs and cats, pour a little on the back end about the ears of hops, which you oan 1d while they are feeding without touching them. By repeatisg these applications every twelve or fifteen days, tLe fleae will fleo from your quadrujiwU, to tl:cir relief and iniprovcnirnt, and your relir f i rl f omfort in the house. Btri il of prn■ strins should be gaturuted ouct a day.