Complications on the part of the visual apparatus in acute and chronic nephritis are not nnusual, and that such do occur is well recognized by physicians in all parts of the world. That complications on the part of the ear are almost as universal—according to Dieulafoy approximating 50 per cent.—is probably not so well known. Ocular and aural affections may often coexist in the same nephritic subject, though the disturbance in either may be entirely functional; that is to say, without appreciable lesions. In the eye, an amblyopia in a nephritic, without apparent gross lesions, has long been recognized. In the ear, a loss of hearing may supervene in a similar manner, though usually accompanied by tinnitus. According to Morf (Archives of Otology, Oct. 8, 1898), there are two distinct classes of aural complications occurring in nephritis. In the first there are always easily recognizable pathologic lesions, "macroscopic, microscopic, or