There is no organic nervous disease more common than hemiplegia or a disease of which there has been more written, and yet the study of hemiplegia is always interesting and profitable. Advantage was taken of the excellent opportunities offered by the nervous wards of the Philadelphia General Hospital to make a study of hemiplegia. A number of cases were also studied in the nervous services of the University and the Polyclinic hospitals.
In all 160 cases were observed. Particular attention was paid to the following subjects: Heredity, prehemiplegic and posthemiplegic pain, atrophy of the muscles of the paralyzed and of the sound side, respiration, the various trophic phenomena, as edema and the arthropathies, vasomotor disturbances and hemichorea.
Of the 160 clinical cases, only 109 were considered in the study of heredity, prehemiplegic and posthemiplegic pain and sensation, because of the unreliability of some of the statements or the