A merican Naturalist.

Annales de l'Institut Pasteur (18 fr. per annum). A monthly bulletin of the Pasteur Institute, containing mostly technical articles, but also articles of interest to persons interested in problems of immunization and immune sera.

Annales des sciences naturelles: zoologie et paléontologie, Paris.

Annals and Magazine of Natural History, including zoology, botany, and geology. Monthly. London. A technical magazine. Of little interest to the general reader.

Archiv fur Naturgeschichte. A journal of natural history published bi-monthly at Berlin.

Archiv fur Rassen-und—Gesellschaft—Biologie einschliefslich Rassen—und Gesell.-Hygiene.

Archives de biologie (quarterly), Liège.

Archives des sciences biologiques. St. Petersburg. Five numbers a year.

Archives Italiennes de biologie. Turin. Bi-monthly.

Biological Bulletin of the Marine Biological Laboratory, Wood's Holl, Massachusetts. Published monthly by the laboratory. Managing editor, Prank R. Lillie. Scientific and technical—very good.