For the removal of cancerous growths, Thiersch has employed injections into their substance of solutions of 1 part of nitrate in 2,000 or 3,000 parts of water; this is followed by a similar injection of dilute chloride of sodium (1 in 1,000), and is said to cause quick disintegration and wasting of the morbid tissue. There is some independent confirmation of his results, but usually suppuration and sloughing have occurred - an effect which Thiersch did not intend (Archives Generale, January, 1867). I am not aware that the method has been extensively tried.