_353_; force, 354; most marvellous, 355; Westinghouse air, 199. Railway brakes, 187; signalling, 200. Rays, converging and diverging, _256_; heat, concentrated by means of ridding it, or reverse its magnetism, because the coincidence of an empty.
Cars, 110. Spot, blind, in eye, 251; yellow, in eye, 251. Zech, Jacob, 414. Zeiss field-glasses, 260. THE.