Acid, Citric: as lotion to allay pain, 1 in 60.
Acid, Hydrochloric.
Acid, Lactic.
Acid, Salicylic: locally applied as powder or saturated solution.
Acids: internally in cancer of stomach.
Aluminium Sulphate: a caustic and disinfectant application.
Aniline.
Argenti Nitras: a saturated solution injected in several places; to be followed by an injection of table-salt 1 in 1000.
Aristol.
Arsenic: as local application, causes cancer to slough out. Sometimes successful when the knife fails, but is dangerous. Internally, in cancer of stomach, lessens vomiting. Supposed to retard growth of cancer in stomach and other parts.