We have already spoken of phosphorus being the active agent in some of these compounds. Barium and arsenic are likewise employed. Most of these being proprietary articles, their exact composition is not of any particular interest.

Sickness, thirst, severe pain and prostration, are chief amongst the symptoms produced by such agents.

Empty stomach with an emetic; give small doses of brandy in water, along with 40 grains of carbonate of bismuth, every three hours, or oftener.

Keep dog quiet, and apply hot dry flannels to the belly continuously.