XI. ON THE STUDY OF PHYSICS. [*]
XII. ON CRYSTALLINE AND SLATY CLEAVAGE. [*]
XIII. ON PARAMAGNETIC AND DIAMAGNETIC FORCES. [*]
XIV. PHYSICAL BASIS OF SOLAR CHEMISTRY. [*]
XV. ELEMENTARY MAGNETISM. [*]
XVI. ON FORCE. [*]
XVII. CONTRIBUTIONS TO MOLECULAR PHYSICS. [*]
XVIII. LIFE, AND LETTERS OF FARADAY. [*]
XIX. THE COPLEY MEDALIST OF 1870. [*]
XX. THE COPLEY MEDALIST OF 1871. [*]