Prof. J. ROSENTHAL. General Physiology of Muscles and Nerves.
Prof. JAMES D. DANA, M.A., LL.D. On Cephalization; or, Head-Characters in the Gradation and Progress of Life.
Prof. S. W. JOHNSON, M.A. On the Nutrition of Plants.
Prof. AUSTIN FLINT, Jr. M.D. The Nervous System and its Relation to the Bodily Functions.
Prof. W. D. WHITNEY. Modern Linguistic Science.
Prof BERNSTEIN (University of Halle). Physiology of the Senses.
Prof. FERDINAND COHN, (University of Breslau). Thallotyphes (Algae, Lichens, Fungi).
Prof HERMANN, (University of Zurich). Respiration.
Prof. LEUCKART (University of Leipsic). Outlines of Animal Organization.
Prof. LIEBREICH (University of Berlin). Outlines of Toxicology.