empty the stomach is the first, last, and most important duty, and till the chief agent, the stomach pump, can be procured, some of the means already advised should be adopted, but where more perfect remedies are at hand they should be employed; of such the best emetics for a vegetable poison are the minerals, especially the white vitriol or sulphate of zinc, twenty or thirty grains of which, dissolved in half a tumbler of warm water, will be found to act almost instantly. To rouse the energies after the ejection of the poison, electricity should, when possible, be applied; stimulants such as ammonia, hot coffee, or camphor administered; and when necessary, aspersions of cold water, and the patient constantly kept moving. In other cases blisters or hot mustard plasters must be applied to the spine, thighs, feet, or stomach; according to the nature and potency of the poison. In irritant or corrosive poisons, concurrent with the vomiting, which, when not induced by the poison itself, should be at once excited, agents to neutralize the virulence of the poison must be administered, and again repeated after each vomiting, to be in turn ejected, again taken, and again discharged. In all poisonings of this class, proceeding from the mineral acids or corrosive compounds, when proper emetics are at hand the vegetable, such as the ipecacuanha, is the most efficacious, twenty or twenty-five grains of which, dissolved in warm water will be found an effective dose; while as a corrective to the corroding nature of the poison, draughts of tepid water, in which shavings of brown soap have been scraped, must be drunk frequently, or half tumblers of water, in which half a tea-spoonful of soda, either the common or carbonate, or the same quantity of ordinary potass; frequent draughts of milk or mucilage, treacle, honey and water; or should none of these articles be at hand, spoonfuls of chalk and water, and in still more extreme cases, when no other aid is at hand to relieve the burning agony induced by the poison, the plaster from the wall or ceiling should be broken down, mixed in water, and given to the patient to neutralize the activity of the poison. Such are the general means adopted to eject the poison from the system; special poisons, however, require particular and special notice. ARSENIC, in addition to the vomiting, should be treated with the white of eggs mixed in water, and administered every ten minutes; or honey, treacle, sugar and water, or milk. OXALIC ACID.—New milk must be given in frequent draughts after each fit of vomiting, or chalk and water. CORROSIVE SUBLIMATE AND VERDIGRIS are treated nearly in the same manner as arsenic; the chief antidotes being white of eggs, milk, and sugar and water; though for verdigris, iron filings dissolved in vinegar, and mixed with mucilage, are generally preferred for this rarely employed poison.