CASE I.--A woman, aged sixty-three, presented herself in the out-patient room at Westminster Hospital, suffering from neuralgia of ten days' standing (which for the present, however, seemed to have abated considerably), but asking advice chiefly for an erysipelatoid inflammation which had come on a day or two before, and occupied the area of the painful nerve-district. The neuralgia had affected the supra-orbital nerve, running up toward the vortex, and the auriculo-temporal branch of the third division of the fifth; although there was no very acute pain present at this time, pressure over the supra-orbital notch, or at a point just in front of the ear, would at once cause a brief paroxysm of pain. It was curious to find that there was a thickened and tender spot over the malar bone (and corresponding to the exit of some nerve filaments from the bone) which had never been the seat of spontaneous neuralgia, but pressure here sent a dart of pain into the auriculo-temporal and supra-orbital nerves. The inflammation was markedly limited to the general area of distribution of the twigs of the auriculo-temporal and of the ophthalmic division; it was of a continuous deep-red color, and attended with much thickening of the skin. The conjunctiva was intensely congested, and there were lachrymation and very marked photophobia, but there were no signs of iritis, and no corneal clouding. CASE II.--M. W., a woman, aged forty-two, well-nourished and healthy-looking, married and had one child; had never suffered any serious ailment except once, about five years previously. She then had a decided attack of "erysipelas," very accurately limited to the right half of the face. Five months before coming to me she sustained a severe shock from being thrown out of a chaise, without suffering any external or visible damage. An hysterical tendency, which she had always possessed, became more marked; it revealed itself by palpitations, occasional dysphagia, and a disposition to weep causelessly. The menses were flowing at the time of the accident; they ceased abruptly soon after (they had been scanty for some time previously), and did not recur till four months later. The hysteric disturbance progressively increased during a fortnight, and then the patient was attacked with violent intermittent neuralgia, commencing in the eyeball and spreading over the district supplied by the branches of the first and second divisions of the trigeminus. The pain was accompanied by intense conjunctival congestion and photophobia [Dr. Handfield Jones remarks that photophobia, in his experience, is only a rare accompaniment of facial neuralgia. I have latterly come to the same opinion. Redness of the eye and lachrymation are very common; true photophobia uncommon. Notta's experience would seem to have been similar]. It lasted on the first day fourteen hours, and returned daily for the next fifteen or sixteen days.