CONTENTS: 1. Experiments on the west coast of Florida and in the Okeechobee wilderness, by A. Heilprin. May 1887.-2. Report upon some fresh-water sponges collected in Florida, by E. Potts. Notice of some fossil human bones, by J. Leidy. Description of mammalian remains from a rock crevice in Florida, by J. Leidy. Description of vertebrate remains from Peace Creek, Florida, by J. Leidy. Notice of some mammalian remains from the salt mine of Petite Anne, Louisiana, by J. Leidy. On Platygonus, an extinct genus allied to the Peccaries, by J. Leidy. Remarks on the nature of organic species, by J. Leidy. Dec. 1889.

CONTENTS: 3. Contributions to the Tertiary fauna of Florida, by W. H. Dall. pt. 1-6. Aug. 1890-Oct. 1903.-4. Fossil vertebrates from the Alachua clays of Florida, by J. Leidy. Jan. 1896.-5. A study of Hawaiian skulls, by H. Allen. Notes on the paleontological publications of Professor William Wagner, by W. H. Dall. Jan. 1898.