Dr. Jules Bernard Luys was born in Paris in 1828, and had just completed his sixty-ninth year when he died. He gained the position of interne of the Paris hospitals in 1853, took his degree in 1857, and became professeur agrégé in 1863, having been appointed Physician to the hospitals in 1862. He was first attached to the Salpêtrière, then to the Charité; he was also Director of the Lunatic Asylum of Ivry. He was elected a Member of he Academy of Medicine in 1877, and in the same year received the decoration of the Legion of Honour, being promoted to the grade of officer in 1895. In 1893 he retired. M. Luys founded, and for many years directed, L'Encéphale, a periodical devoted to nervous and mental diseases. He was the author of a number of works on neurology and the anatomy of the nervous system, for some of which prizes were awarded him by the Académie des Sciences. Among his works the principal are the following: Recherches sur le Système Nerveux Cérébro spinal (1865); Leçons sur les Maladies du Système Nerveux (1875); Le Cerveau et ses Fonctions (1878); Traité Clinique et Pratique des Maladies Mentales (1881); and Traitement de la Folie (1894).