LIPEMIA retinalis, although undoubtedly observed more frequently than published reports might indicate, only infrequently has been the subject of formal dissertations; and, because the intraocular picture is vividly striking, interest in this subject has been stimulated largely by the contributions of ophthalmologists. The antecedent and accompanying acidosis, whether sufficient to cause only drowsiness or so progressively severe as to cause the afflicted person to become comatose, is of course dramatic to the point of demanding remedial attention, to the exclusion, at least for the time being, of attention being directed to organs or systems that might be of interest to the examiner but do not involve the immediate question of life or death. It is not unusual, therefore, as occurred in this case—the sixty-sixth instance to be reported—that the eyegrounds are not immediately examined on admission. It is of interest, however, to mention that the patient under discussion already had