Valuable data frequently become lost in our hospital records simply because no operator sees enough similar cases to draw worth while conclusions. This fact so impressed me that, after following a few unusual cases in my own service, I went over the aural records of the Massachusetts Eye and Ear Infirmary for the last thirty years and collected the following references on papilledema. These data are of especial value, as they are derived from cases in which the patients not only have been under the care of many aural surgeons but have also been examined by various members of the ophthalmic staff.
In brain abscess, meningitis and lateral sinus infections, it is imperative that a correct diagnosis should be made as early as possible, and experience has demonstrated that important help can be obtained by frequent examinations of the eyegrounds, in spite of the fact that absence