Dr. H. CHARLTON BASTIAN, M.D., F.R.S. The Brain as an Organ of Mind.
Prof. A. C. RAMSAY, LL.D., F.R.S. Earth Sculpture: Hills, Valleys, Mountains, Plains, Rivers, Lakes; how they were Produced, and how they have been Destroyed.
Prof RUDOLPH VIRCHOW, (University of Berlin). Morbid Physiological Action.
Prof. CLAUDE BERNARD. Physical and Metaphysical Phenomena of Life.
Prof. A. QUETELET. Social Physics.
Prof. H. SAINTE-CLAIRE DEVILLE. An Introduction to General Chemistry.
Prof. WURTZ. Atoms and the Atomic Theory.
Prof. DE QUATREFAGES. The Negro Races.
Prof LACAZE-DUTHIERS. Zoology since Cuvier.
Prof. BERTHELOT. Chemical Synthesis.