The following are some of the chalybeate and alum springs the waters of which may be expected to be of service in hæmaturia: Orchard Acid Springs, New York; Rockbridge Alum Springs, Pulaski Alum Springs, Bath Alum Springs, Stribling Springs, and Bedford Alum Springs, all in Virginia. In all of these waters iron and alum are both present, accompanied, in many instances, by free sulphuric acid, by which their efficiency is increased. In one of my cases the hemorrhage disappeared temporarily under the use of the water from the Bedford Springs, Penna., but again returned. These waters contain a little iron, but no alum. Subsequently, the same patient was promptly relieved by quinine, which had not been previously tried. But the cases most promptly relieved by the alum waters are the non-malarial cases depending, upon hemorrhagic diathesis without other local disease. A remarkable instance of this kind was related to me by letter by J. Macpherson Scott of Hagerstown, Md. After enormous doses of quinine had been used under the supposition that it was malarial, it was promptly and totally cured. Malignant Malarial Hæmaturia. The second more serious form of this disease, as it occurs in the tropics and the southern part of the United States, is characterized by such increased intensity of all the symptoms that it may be well called malignant. Singularly, however, the disease has seemed to be much more prevalent during the last fifteen years. My attention was first called to it in September, 1868, when I received specimens of urine and the history of some cases from R. D. Webb of Livingston, Ala., who wrote also that it was not known in that part of his State prior to 1863 or 1864.