For Bichloride of Mercury (Corrosive Sublimate).—Give beaten whites of eggs in water; emetic—warm mustard water (1 tsp. to cup); hot coffee. Keep patient warm.

For Iodine.—Give boiled starch, or starch and water, or flour and water. Give hot coffee. Keep patient warm.

For Arsenic (Irritant. See (b).).—Give an emetic; tincture of iron, white of eggs, coffee.

For Laudanum (Affects Nerves. See (a).).—Keep patient awake by walking. Give strong black coffee.

Powder Wounds.

Dangerous because powder carries germs of “lockjaw.”

Wash the skin. Paint with iodine.

Apply vaseline. This loosens any bits of powder, which may be washed off the next day.

Absolutely every wound of this character must be treated by a doctor, who will inject anti-tetanic serum. (See [Chapter XII].)

Prickly Heat.