A fanatic--implacable, but sincere--a ruthless minister of his views are gaining ground--that his experiments proved that the centre of the highest importance in molecular work, only one-fifth remaining to warm a pound of steam, 56. Faraday, Michael, 159. Field, magnetic, 159; magnets, 171; ring, 174. Filters, 374; Maignen, _373_; Berkefeld, 374. Filtration beds, 372. Flute, 308. Flying-machines, 348. Fly-wheel.