Class IV. NARCOTIC POISONS 382 Opium, and its preparations 383 Symptoms of poisoning by Opium 388 Physiological action of Opium 390 Treatment in cases of poisoning by it 391 Organic lesions 393 Of the detection of Opium 394 Black Henbane, Hyoscyamus Niger 395 Prussic Acid, Hydro-cyanic acid 396 The Laurel (Prunus lauro-cerasus) and its distilled water 396 Bitter Almonds 396 Action of Hydro-cyanic acid as a poison 396 Physiological action of Prussic acid 404 Antidotes 406 Organic lesions 407 Chemical processes for its detection 408 Class V. NARCOTICO-ACRID POISONS 410 Deadly Night-shade, Atropa Belladonna 410 Symptoms of poisoning by it 411 Physiological action 412 Organic lesions 412 Modes of detecting its presence 413 Stramonium, Thorn Apple 413 Tobacco, Nicotiana Tabacum 414 Symptoms of poisoning by it 418 Its physiological action 419 Hemlock, Cicuta 420 Nux Vomica 421 Cocculus Indicus 423 Poisonous Mushrooms 425 Symptoms of poisoning by them 428 Organic lesions 433 Antidotes 434 Alcohol 434 Symptoms of poisoning by it 436 Its physiological action 437 Treatment of persons in a state of Inebriety 439 Animal poisons 440