THE DEXTER BICYCLE.
The Dexter bicycle only differs from other two-wheeled machines in one respect. This, however, is quite important. By a simple and effective device, it admits of an instantaneous connection and disconnection of the crank with the axle of the driving wheel, keeping the treadles stationary or in motion, at the will of the rider, while the wheel continues to revolve. Ordinarily, in obtaining a high rate of speed on a velocipede, the rapidity of the revolution of the crank becomes too great to be followed by the movement of the feet, except at the expenditure of too much exertion. This difficulty is wholly obviated by Mr. Dexter. A continuous and uniform rate of speed may be kept up with his machine without fatiguing the rider.