We purpose to give some pares of this Bibliography, according as our space permits, in future numbers of the Journal. We had intended to make the Index commence with January. 1879, but have been induced to include a considerable number in the first list, which bear the date of 1878. We must express our acknowledgments to the “Index Medicus,” compiled by Billings and Fletcher, New York, a work ranging over the whole area of Anatomy, Surgery, Medicine, Dentistry, Hygiene, and Veterinary Medicine. If it is even a task of some labour to extract such publications as bear on Psychological Medicine, and add others from other sources, it is not difficult to form some idea of the colossal labour which the above-mentioned medical men have undertaken. We have found it difficult to know where to draw the lin, but have included some articles on Epilepsy, Hysteria, Catalepsy, Dipsomania, &c. We began by including works on the physiology and pathology of the nervous system, but were obliged to relinquish so extensive a range of medical literature, important as many of the works are which we have excluded from our catalogue. But, wherever we draw the line of demarcation, it must be arbitrary, because no such division exists in nature.