But the great work of his life is the series of Experimental Researches on Electricity, published in the Philosophical Transactions during the last forty years and more. Fully to understand all the discoveries contained in that extraordinary set of papers, would require a knowledge of all that has been discovered during that time as to electricity, magnetism, electromagnetism, and diamagnetism. We may merely mention the fol lowing, almost all of which are discoveries of the first order. They are given in the order of publication, which is nearly that of discovery : 1. Induced Electricity, 1831, comprehending and explaining a vast variety of phenomena, some of which have already been applied in practice (especially as magneto-electricity) to light-houses, electroplat ing, firing of mines, telegraphy, and medical purposes. Electric currents derived from the earth's magnetism. 2. The Electro-tonic State of Matter, 1831; 3. Identity of Elec tricity from Different Sources, 1833; 4. Equivalents in .Electro-chemical Decomposi tion, 1834; 5. Electrostatic Induction—Specific Inductive Capacity, 1838; 6. Relation
of Electric and Magnetic Forces, 1838; 7. The Electricity of the Gymnotus, 1839; 8. Hydro-electricity, 1843; 9. Magnetic Rotatory Polarization, 1846; 10. Diamagnetism and the Magnetic Condition of all Matter, 1846; 11. Polarity of Diamagnetics, and the Relation of Diamagnetism to Crystalline Forces, 1849; 12. Relation of Gravity to Elec tricity, 1851. This, as before remarked, is F.'s attempt to prove a conservation of statical force. 13. Atmospheric Magnetism, 1851. An attempt to explain the diurnal changes of the earth's magnetic force by the solar effect on the oxygen of the air; a very interesting paper.
F., who had received a pension in 1835, was in 1858 appointed a house in Hampton court. In 1862, he gave his last discourse on "gas-furnaces;" and advocated the use of magneto-electric light in light-houses. In 1865, he resigned the position of adviser to the Trinity house, also that of director of the laboratory of the royal institution. See Life of Faraday, by Tyndall (1869); and by Bence Jones (2 vols. 1870).