Iron sulphid.
Lead acetate (sugar of lead); used in 10 per cent. solution to clarify urine.
Lead acetate, tribasic.
Lime-water.
Magnesium carbonate.
Müller's fluid saturated with mercuric chlorid ([p. 37]).
Pepsin, U.S.P.
Phenylhydrazin hydrochlorid.
Potassium ferrocyanid, 10 per cent. solution.
Potassium persulphate.