The Use of corrosive Sublimate had been re-assumed but a few Days, when the Patient having made an Excess in Drinking, his Running suddenly disappeared, and in Four-and-Twenty Hours broke out in the small Canthus of the Left Eye: both Eyes became inflamed, and the whole Face swelled. The next Day the Opthalmia was such as the Patient could not bear Day’s Light. For a while he kept his Eyes shut; and when he did open them, it was only to be sensible that his Sight was nearly lost. It was long before the Opthalmia was entirely discussed; but when it was so, the Vision was much affected, for the Patient could see no Objects except at a Distance; and those only partially, their Image being incompleat. In his Vexation at this, he discharged the Surgeon who attended him, and applied to another. In order to restore his Sight, Purges with Calomel were frequently given, and a Blister kept open on the Neck; but to no Effect. A Discharge at the Nose was at last promoted by Powders _Errhynes_ and Volatile Salts: These excited a fresh inflammation, and rendered the Disease worse. The Patient had laboured Seven Months under these disagreeable Circumstances, when he put himself under my Care. As he was of a sanguine Habit, I had him bled twice the first Day: Afterwards I prescribed a cooling Diet, and kept his Body open with gentle Laxatives. For Fourteen Nights together no other Benefit was received, except that the Eyes were less painful when touched; but during the Course of the third Week, the affected Parts were quite easy: Objects indeed were not distinguished at a nearer Distance, but their image was not so much mutilated. I then had the Patient bled again, and employed emollient Suffumigations and Pultises. These being continued for Fourteen Nights, a great Change was produced in Vision; the image of Objects was no longer mutilated. Bleeding was repeated. The next Day the Patient re-assumed his Laxatives, which he continued for a whole Week. Afterwards he was electrified in the Manner already described, and a Plaister of _Tacamahaca_ was applied to his Temples. Stimulating Plaisters, drawing Sparks, and diluting Infusions, removed in Five Weeks all Obstruction and Swelling of the ocular Muscles. The Sight being thus restored, frequent Lotions with cold Water alone soon compleated his Cure. In _January 1773, J. P._ Esq; took Sublimate Corrosive dissolved in Spirit of Wine, with a view of eradicating a stubborn Gleet. As no Care had been taken to keep his Body open, a Salivation came on. When under this Circumstance, he inconsiderately took a Morning Ride, in a sharp Northerly Wind. At his Return Home he was seized with a sort of Quinsey: His face swelled to a monstrous Size, and his Eyes were inflamed. To relieve him, frequent Doses of Jalap were given. As the Patient could bear no vivid Light, and was in Danger to be suffocated whilst lying in Bed, he passed Night and Day on an elbow Chair, in a darkened Room.