Whatever treatment is employed should be applied with the utmost promptness and thoroughness, As a general rule, the first thing to be thought of is an emetic. A teaspoonful of ground mustard, or an equal quantity of powdered alum in a goblet of warm water, generally acts with promptness. If neither alum nor mustard are at hand, a teaspoonful of salt may be taken in the same way, or tepid water alone may be employed, and if taken rapidly and in sufficient quantity, vomiting will be very likely to occur. In case it is not produced promptly, the throat should be tickled with the finger or a feather An eminent physician has recommended the following as a general antidote for poisons. It renders insoluble such poisons as zinc, arsenic, digitalis, etc., and so makes them inert. A saturated solution of sulphate of iron, two ounces; calcined magnesia, two ounces; washed animal charcoal, or bone-black, one ounce. The iron solution should be kept in one bottle, and the calcined magnesia and charcoal in another. When wanted for use, add the contents of the two bottles to a pint of water, shake thoroughly, and take from three to six tablespoonfuls.