B. Irritant Poisons (symptoms mainly pain, vomiting, and purging).
Arsenic, antimony, phosphorus, cantharides, savin, ergot, digitalis, colchicum, zinc, mercury, lead, copper, silver, iron, baryta, chrome, yew, laburnum, and putrid animal substances.
C. Irritant and Narcotic Poisons (symptoms those of an irritant nature, with the addition of more or less pronounced cerebral indications).
To this class more especially belong oxalic acid and the oxalates, with several poisons belonging to the purely narcotic class, but which produce occasionally irritant effects.
D. Poisons more especially affecting the Nervous System.
1. Narcotics (chief symptom insensibility, which may be preceded by more or less cerebral excitement): Opium, Chloral, Chloroform.
2. Deliriants (delirium for the most part a prominent symptom): Belladonna, hyoscyamus, stramonium, with others of the Solanaceæ, to which may be added—poisonous fungi, Indian hemp, lolium temulentum, œnanthe crocata, and camphor.
3. Convulsives.—Almost every poison has been known to produce convulsive effects, but the only true convulsive poisons are the alkaloids of the strychnos class.
4. Complex Nervous Phenomena: Aconite, digitalis, hemlock, calabar bean, tobacco, lobelia inflata, and curara.