Vomiting may be hastened by thrusting the forefinger down the throat. Two teaspoonfuls of the syrup of ipecac, or a heaping teaspoonful of powdered ipecac taken in a cup of warm water, make an efficient emetic, especially if followed with large amounts of warm water. It is to be remembered that in some poisons, as certain acids and alkalies, no emetic should be given. Again, for certain poisons (except in case of arsenic) causing local irritation, but which also affect the system at large, no emetic should be given. 392. Reference Table of Common Poisons; Prominent Symptoms; Antidotes and Treatment. The common poisons with their leading symptoms, treatment, and antidotes, may be conveniently arranged for easy reference in the form of a table. It is to be remembered, of course, that a complete mastery of the table of poisons, as set forth on the two following pages, is really a physician’s business. At the same time, no one of fair education should neglect to learn a few of the essential things to do in accidental or intentional poisoning. A Table of the More Common Poisons, With their prominent symptoms, antidotes, and treatment. Poison Prominent Symptoms Antidotes and Treatment _Strong Acids:_ Muriatic, Nitric, Sulphuric (vitriol), Oxalic. Burning sensation in mouth, throat, and stomach; blisters about mouth; vomiting; great weakness _No emetic_ Saleratus; chalk; soap; plaster from the wall; lime; magnesia; baking soda (3 or 4 teaspoonfuls in a glass of water). _Alkalies_: Caustic potash and soda, Ammonia, Lye, Pearlash, Saltpeter. Burning sensation in the parts; severe pain in stomach; vomiting; difficulty in swallowing; cold skin; weak pulse. _No emetic_ Olive oil freely; lemon juice, vinegar; melted butter and vaseline; thick cream. _Arsenic:_ Paris green, Rough on rats, White arsenic, Fowler’s solution, Scheele’s green. Intense pains in stomach and bowels; thirst; vomiting, perhaps with blood; cold and clammy skin. Vomit patient repeatedly, give hydrated oxide of iron with magnesia, usually kept by druggists for emergencies; follow with strong solution of common salt and water. _Other Metallic Poisons_: Blue vitriol, Copperas, Green vitriol, Sugar of lead, Corrosive sublimate, Bedbug poison. Symptoms in general, same as in arsenical poisoning. With lead and mercury there may be a metallic taste in the mouth. Emetic with lead; none with copper and iron; white of eggs in abundance with copper; with iron and lead give epsom salts freely; afterwards, oils, flour, and water. _No emetic with mercury;_ raw eggs; milk, or flour, and water. _Phosphorus from_ Matches, rat poisons, etc. Pain in the stomach; vomiting; purging; general collapse. _Cause vomiting_. Strong soapsuds; magnesia in water. Never give oils. _Opium:_