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.
Prof. KUNDT, (University of Strasburg.) On Sound.
Prof. LONMEL, (University of Erlangen.) Optics.
Prof. REES, (University of Erlangen.) On Parasitic Plants.
Prof. STEINTHAL, (University of Berlin.) Outlines of the Science of Language.
☞ For List of Works already Published, see beginning of book.
Henry S. King & Co., 65 Cornhill, and 12 Paternoster Row, London.