hief feature of the lecture machines of great beauty. This is one of the firms that was the announcement of the fact that an earthquake The has not followed the fashion of barrel hubs. The rear occurring in any portion of the earth could be recorded in any other part by means of suitable… … 3. Brown roller sprocket. 1. Detail view of cuil. 2. Connections between coil high speed porition. and han ile bar. THE JOHNSTON TWO SPEED GEAR. THE SPENCER INVISIBLE COIL BRAKE. earth rather than around its surface. This high velo- brake proper consists of a spiral coil of flat spring hub, turned…
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