(3.) Mustard.
(4.) Ipecacuanha.
The sulphate of zinc may either be carried in 30-grain powders or in the ordinary solid crystalline state, together with a little measure made out of a small pill-box which, when exactly full, is found to contain from 25 to 30 grains.
A still more convenient form is that of the compressed tablets, sold as a speciality by one or more firms. The same remarks apply to ipecacuanha.
The apomorphine hydrochlorate should be in solution, a suitable strength is 2 per cent.; a few drops of this substance, injected hypodermically, will cause vomiting in a few minutes.
Besides the above list, the bag should be furnished with a selection of the so-called antidotes.
III. Antidotes:—
(a.) Chemicals neutralising the poison.
Acetic acid and calcined magnesia.
(b.) Precipitants of alkaloids.