Now unfurled under the assumptions of Ampère.]--Diamagnetism and Magne-crystallic Action, p. 136-7. ******************** XVI. THE ELECTRIC TELEGRAPH. Needle instruments--Influence of current in dynamo circuit, 163. Diver's feats, 338; helmet, _336_; lamp, _338_. Donkey-engines, 68. Doorstop, self-closing, 344. Double-cylinder engines, 47.