at each revolution of the wheel, an this article. In general terms, it consists of an arrange- Conserve ITonr Force. arm having an offset, on which rests the lower end of Hamerton says : " It often happens that mere activ- ment for projecting or throwing a marble in a hori- an arm secured to the… … on which the bags to be filled are APPARATUS FOE ILLUSTRATING NEWTON'S LAWS. These are attached to the two sets hung. The amount of grain passed of pins, as shown in the engraving, into the bag is shown by the scale, a registering device so that the sliding block is drawn forward and down- habit of…
