ANTIMONY 521 In exceptional cases the post-mortem appearances of poisoning by antimony may be absent. For instance, in the case of Mrs. Taylor, one of the victims of Dr. Pritchard, where death occurred from acute poisoning by tartar emetic, the post-mortem examination revealed nothing although the poison was detected in the viscera, urine, blood and intestinal contents.44 In poisoning by antimony trichloride the post-mortem appearances will be charring and corrosion of those parts with which it has come into contact. Fig. 172.—Microphotograph of Antimony Trioxide Crystals X 400. (R3. Dr. K. N. Bagchi.) Chronic Poisoning1.—This occurs from the administration of repeated small doses of tartar emetic. The symptoms are nervous irritability, giddi- ness, headache, nausea, persistent vomiting of bile and mucus, and watery purging sometimes alternating with constipation. The tongue becomes foul; there is loss of voice, and the pulse is weak and rapid. The skin is cold and clammy. There is great prostration and the patient is very much emaciated. He abhors the sight of food, as he cannot retain it in the stomach. Death results from exhaustion, or from the effects of a larger dose than "usually administered. Sometimes, cramps occur instead of relaxation of the muscles. Treatment.—Remove the patient from the source of poisoning, and eliminate the poison from the system by giving potassium iodide. Post-mortem Appearances.—The post-mortem appearances in chronic poisoning are not so characteristic as in acute poisoning. The body is emaciated. The tongue and the interior of the mouth are covered with fur 44. Peterson, Haines and Webster, Leg. Med. and Toxic., Vol H, Ed. n, p. 267.