CHEW, SAMUEL C., M.D.,

Professor of Materia Medica, Therapeutics, and Clinical Medicine in the University of Maryland, Baltimore.

CUTLER, ELBRIDGE G., M.D.,

Clinical Instructor in Auscultation in the Harvard Medical School; Physician to Out-Patients, Massachusetts General Hospital.

DACOSTA, J. M., M.D., LL.D.,

Professor of Theory and Practice of Medicine in the Jefferson Medical College, Philadelphia.

DAVIS, N. S., M.D., LL.D.,

Professor of Principles and Practice of Medicine in the Chicago Medical College, Chicago.

DONALDSON, FRANK, M.D.,

Clinical Professor of Diseases of the Throat and Chest in the University of Maryland, Baltimore.