ion of- The roller, when not in use, rests in a trough of water, T, strument, the cylinder be rotated at a uniform speed away fered. We could not tame it to any extent until, by beating from the diaphragm, the friction between the cylin- it smartly and repeatedly, we at length succeeded der and the… … attracted at the other station, and by which such cately, still it never resented any of these liberties. calls are received; this differs in no respect from an ordinary Twenty-five years have since passed away, yet, when I now and has only occasionally to be raised when the cylinder be- electric…
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