Prof. WURTZ. Atoms and the Atomic Theory.
Prof. DE QUATREFAGES. The Negro Races.
Prof. LACAZE-DUTHIERS. Zoology since Cuvier.
Prof. BERTHELOT. Chemical Synthesis.
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.