=Illuminating-gas and Carbon-monoxide.= Blood fluid and cherry-red; cadaver life-like; pink hypostasis; carbon-monoxide-hæmoglobin in blood demonstrated by spectroscope. In poisoning by coal-gas the changes are less marked because of the greater amount of carbon dioxide present. Inhalation of smoke is shown by black, sooty deposits upon the mucosa of the respiratory tract. =Lead.= In acute cases severe gastro-enteritis; black fluid in intestines; cloudy swelling of kidneys. In chronic cases arteriosclerosis, fatty degeneration of muscles, liver, kidneys and spleen; cirrhosis; blue line on gums. =Mercury.= Mucosæ congested, ecchymotic or showing grayish-white eschars; diphtheritic inflammation of pharynx, colon and vagina; decalcification of bone; cloudy swelling and calcification of kidney. In chronic cases ulcerative stomatitis. =Nitrobenzol.= Cadaver cyanosed; blood and muscles brown; mucosa of stomach hyperæmic and ecchymotic; odor of bitter almonds; brownish methæmoglobin in collecting tubules of kidney. =Opium and Morphine.= No characteristic findings. Condition of pupils not conclusive. =Phosphorus.= In very acute cases there may be few changes; odor of phosphorus; cloudy swelling of heart, liver, kidneys and gastric mucosa. In subacute cases there is icterus, hæmorrhage, marked fatty degeneration of all organs; in chronic poisoning there is universal fatty degeneration, and not rarely a necrosis of the jaw-bone. =Potassium Chlorate.= Hypostatic spots and blood are of chocolate color; methæmoglobinæmia; hæmorrhagic nephritis. =Ptomaines.= Gastro-enteritis, fatty degeneration; icterus, cloudy swelling of kidneys. =Strychnine.= Intense and persistent rigor mortis; blood fluid and dark as in asphyxia. Urine should be saved for the frog-test. Other causes of death requiring especial consideration in a medicolegal examination are:— =Abortion.= Determined by the finding of fœtal tissues, chorionic villi, decidua, enlargement of uterus, formation of sinuses at placental site, curetted surface, corpus luteum of pregnancy in ovary, punctures or lacerations of uterus and cervix, effects of corrosive fluids, infective endometritis, evidences of poisoning.