American practice of surgery : a complete system of the science and art of surgery . the condition of the person bitten, etc. The Crotalidse (Rattlesnakes, etc.).—In those who are bitten by thisspecies of snake, the mortality varies from twelve to twenty-five per cent. Thelocal symptoms are most marked—viz., pain, oedema, and extravasation of blood,followed by sloughing, gangrene, and suppuration. The constitutional symp-toms are great prostration, dilated pupil, headache, dizziness, rapid and feeble 12 AMERICAN PRACTICE OF SURGERY. pulse, dyspnoea and shallow respiration, hemorrhages from the
American practice of surgery : a complete system of the science and art of surgery . the condition of the person bitten, etc. The Crotalidse (Rattlesnakes, etc.).—In those who are bitten by thisspecies of snake, the mortality varies from twelve to twenty-five per cent. Thelocal symptoms are most marked—viz., pain, oedema, and extravasation of blood,followed by sloughing, gangrene, and suppuration. The constitutional symp-toms are great prostration, dilated pupil, headache, dizziness, rapid and feeble 12 AMERICAN PRACTICE OF SURGERY. pulse, dyspnoea and shallow respiration, hemorrhages from the stomach andkidneys, nausea, vomiting, unconsciousness, convulsions, and death fromparalysis of respiration. Not all of these symptoms, however, occur in anyone case. Death, when it occurs, is usually much more delayed than in cobra-poisoning,where it may occur in a few minutes, and, in the great majority of cases, actuallydoes occur within twenty-four hours. The delayed deaths from rattlesnake-poisoning are really secondary, due to septic infection, the result of the action. Fig. 11.—The Cobra (Xaja tripudians). of the poison in destroying the bactericidal power of the blood. It may alsoresult from nephritis or other secondary effects upon the viscera. The actionof the rattlesnake poison has been compared to that of the yellow-fever toxin,which it closely resembles, as will be seen from the preceding description of thesymptoms produced by it. Recovery, when it ensues, is often quite sudden POISONED WOUNDS. 13 and rapid, thus accounting no doubt for many of the vaunted cures by variousspecifics. The bite of the moccasin or copperhead is seldom directly fatal, but mayresult in the loss of a limb or in a subsequent septicaemia. To make the diagnosis, the bite should be examined. If the snake is harm-less, two uniform rows of tooth-marks will be found; if there are two or moredistinct fang-marks, with or without tooth-marks, the snake is poisonous (seeFig. 6). If the snake h
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