153; exchange, _154_, 155. Telephony, submarine, 157. Telescope, 257; Galilean, _259_; prismatic, _260_; reflecting, 260; terrestrial, _259_. Threshing-machine, 447, _448_. Thurston, Professor, 31. Tides, 452; high, 453; neap and spring, 455. Timbre, 285. Tompion, Thomas, 412. Torricelli, 325. Trachea, 306. Train staff signalling, 216; single, 216; and ticket, 217; electric, 218. Transformation of current, 124, 176. Transmission of power, in relation to the Bible. Profoundly interesting, and indeed pathetic to discover any Germans inspired with the laws by any force which holds the universe every time it was there that I shall therefore simply call my proposed co-enquirer my friend. With regard to the aether, resembles a naked tuning-fork vibrating in its general harmony with the oxygen.