Iron has sometimes succeeded well in purpura of passive character, but is not of much advantage in the bleeding of true scorbutus. Both the sulphate and the perchloride have cured cases when other remedies, such as sulphuric acid and change of diet, have had no effect. Homolle was the first physician to recommend the sulphate (Union Medicale, No. 135, 1856), and Dauvergne, recording a striking instance of benefit from the perchloride, remarks that it acts better in cases with large effusion (in plagues) than in the merely petechial forms, and this I believe from my own experience to be correct (Bulletin de Therapeutique, 1867). Other cases may be found in Bulletin, 1868, British and Foreign Review, i., 1861, and Medical Times, ii., 1861, p. 501; they include one patient at seventy, and one a child; in one the malady was connected with deficient supply of animal food; the arseniate answered well in another case (Lancet, ii., 1872).