- Arsenic, antimony, cadmium.
DIVISION II.—Precipitated by Hydric Sulphide in Hydrochloric acid Solution—Black.
- Lead, copper, bismuth, silver, mercury.
DIVISION III.—Precipitated from a Neutral Solution by Hydric Sulphide.
- Zinc, nickel, cobalt.
DIVISION IV.—Precipitated by Ammonia Sulphide.
- Iron, chromium, thallium, aluminium.
DIVISION V.—Alkaline Earths.
- Barium.