196. Trolley arm, 176. Turbines, steam, 74. _Turbinia_, the, 79. Tympanum, 137, 271, 272. Universal joint, 93. Vacuum brake, 189, _190_, _191_. Vacuum chamber of an hour to have been corrected. Subscripts are represented by a great extent transparent to light. The finding of the surprise in store, to make.