Speaking still from my own experience, I will state that the cases that have proven the most amenable to treatment were, _first_, those of rheumatic origin; _second_, hysterical neuralgiæ, and, _third_, cases where no assignable cause could be elicited. The most obstinate varieties were those of a malarial type (even when quinine in large doses or arsenic were employed in conjunction with galvanism) and those that depended on some form of chronic inflammation—_neuritis_, _periostitis_, etc. Of central neuralgiæ, I have had excellent results in the sympathetic variety and in the pains of posterior spinal sclerosis, while in the neuralgiæ of cerebral origin (diffuse cerebral sclerosis, tumors, etc.) I have never met with any appreciable success. Where, then, we are able accurately to diagnose a case, there cannot be much doubt as to the appropriateness or not of electrical treatment, and in cases whose origin is obscure, which may be considered practically functional and therefore treated more or less empirically, electricity holds out as much or more hope than any other remedy. Whether electricity should be employed locally or in the form of baths, must depend on the features presented by each individual case. In neuralgia of the fifth pair—excepting those reflex cases where the _point d’origine_ is to be sought for somewhere in the trunk or extremities, and those that depend on cerebral hyperæmia or anæmia, where the equalizing effects of the baths on the circulation are frequently of great benefit—these are generally useless. Of other neuralgiæ, I have found the baths less successful in those of the superior than in those of the inferior spinal nerves. Lumbo-abdominal neuralgia and sciatica have yielded much more readily than brachial or dorso-intercostal neuralgia, etc., etc. The mode of administering the baths in neuralgiæ does not possess enough of uniformity to render suggestion in this respect of any value. I will state however that, as a rule, the best results have been obtained from the descending galvanic current. In chronic cases the baths should be administered daily, and should not be discarded as unavailing until at least a dozen have been successively taken. CASE XX. _Sciatica._ Mr. R., a middle aged man, mechanic, was sent by Dr. ARCULARIUS Nov. 9th, 1874. Had post-rheumatic sciatica of some six weeks’ standing. There were no remarkable features about the case, which however was sufficiently severe to disable him from pursuing his avocation. He took his first bath on the date above-mentioned. Another bath was administered next day, and three more every alternate day. He was then almost well. On Nov. 25th he returned, there remaining still some traces of the affection. Four more baths, the last of which was administered on Dec. 4th, sufficed to complete the cure.