AN EASILY REGULATED ELECTRIC MOTOR. ONG'S ELECTRIC MOTOR. A COMFORTABLE READING CHAIR. The Use of Eyeglasses. 4 Not as Easy as it Seems. AN IMPROVED CAR COUPLING. passes the head of the link and drops into engagement QUATERMASS' CAR COUPLING. LOWBERG'S DECK-CLEANING MACHINE., scientific american, 1892-07-30

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