VII. AN ADDRESS TO STUDENTS. [*]
VIII. SCIENTIFIC USE OF THE IMAGINATION. [*]
IX. THE BELFAST ADDRESS. [*]
X. APOLOGY FOR THE BELFAST ADDRESS. [*]
XI. THE REV. JAMES MARTINEAU AND THE BELFAST ADDRESS. [*]
XII. FERMENTATION, & ITS BEARINGS ON SURGERY & MEDICINE. [*]
XIII. SPONTANEOUS GENERATION. [*]
XIV. SCIENCE AND MAN. [*]
XV. PROFESSOR VIRCHOW AND EVOLUTION. [*]
XVI. THE ELECTRIC LIGHT. [*]