---- to Faraday: From Sir H. Davy, 44, 45; from Baron Liebig, 225; from Sir W. Thomson (Lord Kelvin), 285; from Rev. W. Whewell, 116, 144, 145, 163, 205 Liebig, J. von, Reminiscences by, 224, 282 Light, Action of magnetism on, 176 ----, Electromagnetic theory of, 197, 199, 213 Lighthouses, Scientific work for, 67, 199, 218, 259 Lines of force, 113, 133, 195, 208, 211, 213, 285; vibrations of, 195 Liquefaction of gases, 55, 91, 171 London University (_see_ UNIVERSITY) Love of children, 233, 235 ----, Poetical diatribe against, and recantation, 40, 47 Lovelace, Lady, Letter to, 291 Love-letters of Faraday, 47, 48, 52, 58, 256 M. Magnecrystallic forces, 201 Magnetic lines, 113, 133, 195, 213, 214 Magnetisation by light, 183 ---- of light, 176 Magnetism and cold, 167 ---- of gases, 204 ---- of rotation, Alleged, 106, 121 Magneto-electric discovery, 95, 112 ---- induction, 115 ---- light, 120, 130, 218, 259 ---- machines, 122, 125, 126, 218, 259 Magneto-optical researches, 176, 182, 220 Magrath, E., 7, 14, 60, 231 Marcet, Mrs., Conversations on Chemistry, 6 Masquerier teaches Faraday to draw, 8 Mathematics _versus_ experiment, 117, 239, 280 ----, Faraday’s views on, 280, 281 ---- and Faraday’s methods, 217, 282 Matteucci, C., Letters to, 253, 262, 267 Maxwell (_see_ CLERK MAXWELL) Mayo, Herbert, Impromptu by, 117 Meat-canning processes, 243 Medium, Action in a, 157, 213, 216 ----, The part played by the, 128, 153, 158, 194, 213 Melbourne, Lord, and Faraday’s pension, 69 Memory, Troubles of a defective, 7, 63, 74, 253 Mental education, Views on, 278, 292 Models, Use of, 104, 239 Moigno, Abbé, Reminiscence by, 297 Moll, G.: his electromagnets, 120; pamphlet on “Decline of Science,” 110, 262 Moore, Miss, Letter to, 207 Morichini’s experiments on magnetisation by light, 21, 183 Murchison, Sir R., Reminiscence by, 227 Music, Enjoyment of, 246 N. Natural theology, Views on, 298 New electrical machine, 121 Newman, Rev. J. H., and the British Association, 65 Newton, Mr. Jos., Reminiscence by, 254 Nobili and Antinori, their mistake, 266 Non-inductive winding, 150 Notebooks a better test than examinations, 277 ----, Faraday’s own, 8, 50, 73, 87, 90, 91, 108, 111, 118, 129, 141, 143, 150, 153, 156, 167, 177, 180, 181, 182, 220 O. Oersted’s discovery of electromagnetism, 77, 78 Optical glass, Research on, 95, 100 ---- illusions, Research on, 136 ---- relations of electricity, 91, 149, 155, 167, 172, 174, 175 ---- ---- of magnetism, 176, 182, 220 Order and method, 68, 99, 200 Owen, Lady, Reminiscences by, 236 Oxford and the philosophers, 64 Oxygen, Magnetic properties of, 208 P. Paris, Dr. J. A., Letters to, 10, 93 Passive state of iron, 167 Peel, Sir Robert, 69, 70, 246