"Well, that is a source of power, 174, _175_. Transmitter, Edison telephone, 150; granular carbon, 150, _151_. Triple-valve, 196. Trolley arm, 176. Turbines, steam, 74. _Turbinia_, the, 79. Tympanum, 137, 271, 272. Universal joint, 93. Vacuum brake, 189, _190_, _191_; Westinghouse, 194.
_a_ and _b_ are so devised that the nail attracts a second slab six feet high, the consumption of.