Authorities. 1 , G. F. Collier, M.D. Lancet, 1845 (2), p. 503, a man suffering from an eruption drank, in the morning, the urine he had passed the night before, for nine days; 2 , Prof. Mauthner, Journ. de Kinderkrankheiten, 22, 1854, p. 1, experiments with urea in cases of dropsy. Face very much swollen, [1] . Anasarca generally more prominent in the upper than in the lower parts of the body, [1] . Fluid in the abdomen and in the parietes of chest and belly, swelling, however, greatest in the upper parts, [1] . Urine scanty, thick, deep brown, and very offensive, [1] . Heaviness of the head, increased on stooping, and his own words are, that he feels too heavy for work, having neither his usual life nor warmth in him, [1] . Little thirst, [1] . Pulse under 90, [1] . Countenance pale; expression heavy and vague, [1] . He walks with a stick, because, he says, he feels the want of support, [1] . [10.] Loses his breath if he walks quick, and is obliged to stop, [1] . Profuse diuresis, with rapid diminution of the dropsy. Case of a boy, aet. seven years, suffering from dropsy: diminished urine, passed frequently; albuminuria; bloody urine; abdomen, twenty-one inches round; scrotum, feet, and back oedematous; heart's action irregular, intermittent, 68, with sighing; attacked with violent convulsions. Took two grains of Nitrate of urea in three doses, at intervals of two hours. The urine became as clear as water; the albumen diminished; the dropsy diminished. On the second day the albuminuria disappeared, and the patient was perfectly well without any other medicine. Case of a girl, six years old, who was delirious, had nosebleed; urine brown, very albuminous; oedema of the pudenda; dropsy of the abdomen; pulse small and slow, 88; attacks of suffocation. Gave Urea as before. The urine increased, the swelling disappeared, and after ten days there was no longer any trace of albumen in the urine, and the child recovered perfectly, [2] .