2 books
Davis's Manual of Magnetism. Including Also Electro-Magnetism, Magneto-Electricity, and Thermo-Electricity. with a Description of the Electrotype Proc
Davis's Manual of Magnetism. Including Also Electro-Magnetism, Magneto-Electricity, and Thermo-Electricity. with a Description of the Electrotype Process. for the Use of Students and Literary Institutions. with 100 Original Illustrations