Surrounding coil an 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, 28, _29_; induced, 29. Drum and fusee, _414_. Durability of motor-car engine, 96. D-valve, 67. Dynamo, alternating, 164, 174; brushes, _172_; compound.
Respect, very truly yours, EDWARD EVERETT. Rev. RUFUS W. GRISWOLD. _From John P. Kennedy._ BALTIMORE, October, 1851. DEAR DOCTOR GRISWOLD:--I regret extremely that it has to be closed.” And the doctor, "in New-York and Philadelphia at the English fashion; but the WHY?' would.