This disease occurs in two forms--_diabetes insipidus_ and _diabetes mellitus_. In the first named form, the disease is readily cured. In the latter, it is very formidable, and is rarely, if ever, cured by medicines; especially when of long standing. In this latter variety of the disease, the urea is absent from the urine, and in its place is found more or less of sugar--often large quantities: Dunglison says 2-1/2 oz. in a pint. The electrical state of the disease, in both of these forms, is negative in excess. 1. _D. insipidus._ Use the B D current, of moderate force. Place P. P. at the coccyx or on the upper dorsal vertebra, or on both in alternation, which is better, and treat over the kidneys with N. P. five to eight minutes, once a day for three or four days. If this should fail to cure, (as it seldom will), go on with the same treatment three times a week. 2. _D. mellitus._ Take the A D current, of _mild_ force. Place P. P. as in _d. insipidus_, and treat the kidneys with N. P. about five to eight minutes, three times a week; supplementing this with _general tonic treatment_, once or twice a week. _Be patient and persevering._ In bad cases, months will be required to effect a cure; but persistent effort, as above prescribed, will rarely if ever fail, unless the vital force is nearly expended. DYSPEPSIA. This is one of the most difficult of diseases to control by any of the ordinary modes of medical practice; and yet, under judicious electrical treatment, it is one of the surest to yield. The disease assumes various phases in different persons, and at different times in the same person, requiring varied treatment. The pain, after eating, is severe; exhalations of air, apparently from the inner surfaces of the stomach and bowels, or of gas from their decomposing contents, are large--often enormous. The stomach is much of the time acid, and, in some cases, sensibly cold, ejecting often a cold mucus. The bowels are habitually constipated. The patient is nervous, irritable, and subject to great depression of spirits. In this stage or phase of the disease, there is a negative condition of the digestive apparatus generally. Treat with the A D current, in mild force, and expect the case to require considerable time. But, since there is no approach to uniformity among patients, no approximation to definite time can be stated. Give _general tonic treatment_, (page 95), three times a week, and close each sitting with local treatment, having P. P. at the coccyx, and manipulating some five minutes with N. P. over the entire front parts of the abdomen and thorax, and over the liver. It is sometimes found, in old cases, that there is no sensible acidity of stomach; but a _pyrosis_--a burning sensation in the stomach, or a little above, in what is usually termed "the pit of the stomach." Treat this about three minutes with the P. P., strong force; moving N. P., _long cord_, over the lower dorsal vertebræ. ACUTE DIARRHŒA.