P for el electricity etri city at montreux in switzerland the electric tramway pets gets its power from a very small stream and from the old roman town of vevey bevey to the mediaeval media eval castle of chillon one may ride in a trolley car propelled by the power of an insignificant stream the capabilities of this general utilization of natural power are beginning to be understood everywhere ery where and with the appreciation of the possibilities of the best methods of long distance transmission the development of many mountain streams must surely come there are innumerable streams which while very small are yet very high and these can with comparatively little difficulty be impounded and carried down many hundreds of feet thus making up for their lack of volume by the great pressure readily obtainable and either by the use of electricity or compressed air the power may be transmitted to many malty points of application with but urtle little loss