that purpose. The lever, D, has its fulcrum in the the axis of the cone becomes sensibly shorter by the flowing streams from the mountain slopes, the springs upright, B, and the end of its long arm is connected rising of its base; and in order to raise the balls a given that gush cool from their… … slight change in its velocity; and to this end the inven- the main reliable sources are in the mother veins. Much tion consists principally in attaching the arms of the of the gold in the veins is in a form and combination governor to the spindle or revolving frame at points be- that will be lost…
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