To Pestrot Rats.—One quart of tho best oatmeal ; two ounces of finely powdered loaf sugar ; six drops oil of rhodium ; six drops earn-way ; etk drops oil of aniseed ; musk, quarter of , a grain. Mix well together 011 a sheet of clean paper with a knife, taking every possible care to break the small lumps formed by the drops of oil in the oatmeal; not to touch the mixture with the hand. Keep it in a closely covered pot f«»r use. Chooso a very quiet retired place much frequented by rats, place on six or eight pieces oi clean board about two table spoonfuls of the feed for at least four nights successively, taking care , to remove all that the rats have not consumed every morning ; in doing so, disturb the rats as j little as possible, and on no account whatever at-tempt to strike or kill them, even should they be j found lame enough to be caught by the hand. In the course of four or five days they will become tame, and will scarcely leave, the food on the approach of any person. They will scent each other, and will probably congregate from all parts of the neighbourhood. Continue to teed them nightly until they are found to eat freely; then, about the sixth night, mix a spoonful of arsenic with the powder ; and after leaving it ail night, remove what may remain, and buru it.— [Gardners* Chronicle.