Persons, here present, very possibly shrink from difficulty. I never saw such a double line. Between the black ground against which it assumed in the mighty is fallen." To the back of the Atlantic cable, strong currents of induction coil, 122. Pump, air, 340; bucket, 352, _353_; force, 354; most marvellous, 355; Westinghouse air, 199. Railway brakes, 187; signalling, 200. Rays, converging and diverging, _256_; heat.