TARTAR EMETIC of itself produces vomiting, but this may be kept up by giving mucilage and such astringent infusions as common tea, &c. COPPER. The sulphate or acetate of copper might act as an emetic, but small quantities remaining in the stomach might act as irritant poisons. Give large doses of simple syrup as warm as can be swallowed; give also the whites of eggs and large quantities of milk; and as an antidote the hydrated peroxide of iron. For BISMUTH, IODINE, or COPPERAS taken in an overdose, give the same emetics and demulcents as for copper. ZINC and TIN. The sulphate of zinc and the salts of tin when not vomited entirely, produce severe irritating effects on the stomach. Besides milk and albumen give carbonate of soda in solution. COLYCINTH, CROTON OIL, and SAVINE OIL may produce like the above, vomiting, diarrhœa, and also constriction of the throat. Give copious doses of barley water, etc.; give opium and perhaps stimulants. These cases and all the rest of the above may be benefitted by taking freely of gum Arabic mucilage, and may demand treatment for inflammation. CANTHARIDES may produce severe pain in the bowels, bloody evacuations, strangury, burning thirst and fever. Give emollient drinks with enemata, to which some laudanum may be added, and also camphor; oil must not be given in cases of poisoning by cantharides or phosphorus. TOADSTOOLS, AGARIC, ACONITE, BELLADONNA, CONIUM, COLCHICUM, HELLEBORE, and ALCOHOL, are acro-narcotics which may cause severe irritation of the throat and stomach, and such symptoms as burning heat of the esophagus and stomach, thirst, violent nausea, purging, dryness and constriction of the mouth and throat; and be followed by such symptoms as are produced by narcotic poisons: vertigo, headache, perversion of vision, sense of suffocation, disposition to sleep, numbness or paralysis of the limbs, prostration of the strength, cold extremities, feeble pulse, and stupor. STRAMMONIUM, CAMPHOR, CHLORAL, DIGITALIS, BITTER-SWEET and HYOSCYAMUS may be called narcotic poisons. Give prompt emetics, demulcents, witch hazel, active purgatives, strong coffee; keep the patient roused, use electro-magnetism, cold douche, and employ friction. For PHOSPHORUS, which a child sometimes obtains from the ends of matches, give emetics, and administer big doses of magnesia in water and mucilage. There are a few other poisons which might be classed as irritant, such as nitrate potash (salt petre) which need the same class of remedies as those already named. For nitre give also stimulants freely. OPIUM and BELLADONNA are antidotes to each other, and if a person has taken an overdose of one, the other should be given if it is at hand. Evacuate the stomach perhaps by tickling the fauces; give also strong coffee, active stimulants, witch hazel; employ friction, perhaps electro magnetism, and keep the patient moving. Morphine of course demands the same.