CASE XXX.* _Mercurial Stomatitis._ Mr. S., about 35 years of age, came to me for treatment in the fall of 1872. He then had indurated chancre, two buboes and syphilitic sore throat. He had had the chancre for six weeks before applying to me, but had been, he said, ashamed to consult a physician. Before medication had had time to make any impression on the disease, roseola appeared. The syphilis was very obstinate in this patient, compelling me to keep him under the influence of mercury for a long time. In October 1873, the patient presented himself with a very aggravated mercurial stomatitis. The customary remedies, internal as well as external, made little or no impression on the affection. On November 11th, I discontinued all other treatment, and ordered a course of galvanic baths. He took his first bath on the same day. This was repeated every alternate day until six baths had been taken, when all symptoms of the disease had disappeared. He has had no mercurial trouble since then. The descending galvanic current from a zinc-carbon battery was used throughout. LOCOMOTOR ATAXIA. Were it not for the remarkable results obtained in the following case, I should not have felt justified in devoting any space to an allusion to this formidable disease. I insert the case as it was published in No. 216 of the “Medical Record.” I have to add that the patient, some six months ago, suffered a relapse, which however is not nearly as aggravated as his former condition, nor are the symptoms so pathognomonic. I had a letter from him about a week previous to my writing this, in which he states that he intends soon to come to the city for the purpose of taking another course of treatment. Even if the treatment however has not had the effect of curing the disease—and this I do not claim for it, it has been of sufficient importance if it has resulted in arresting for a time its progress, giving the patient temporary comfort, and prolonging life. Further trial may possibly have better results—in more recent cases—with respect to permanency.