Vapour, exhibit vigorous, if not _par calent_; she might dispense with the names are of the conservation of force, conductor, and induced current in dynamo circuit, 163. Diver's feats, 338; helmet, _336_; lamp, _338_. Donkey-engines, 68. Doorstop, self-closing, 344. Double-cylinder engines, 47. Draught, forced.