AND PECZKAI „ 66 COUNTRY FOLK GOING TO DRAW RATIONS „ 76 EUGENE HAMBURGER „ 82 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. A LECTURE TO SCHOOLMASTERS. WE have no particular aptitude at school.