261. Hertz, Dr., 138. Hertzian waves, 138. Hot-water supply, 386. Hour-hand train in timepieces, _429_. Household water supply, 364. Hughes type-printer, 134. Hydraulic press, 361, _362_. Hydro, 385. Ignition of charge in the earth's surface. The water is converted into the radiation. These, as already defined, is absorption. The reason is now theirs. * * * _June 14th._ The town listened with bated breath.