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Iaac Newton eems to have detroy'd all thee great and little Vortices, both that which carries the Planets round the Sun, as well as the other which uppoes every Planet to turn on its own Axis. , with regard to the pretended little Vortex of the Earth, 'tis demontrated that it mut loe its Motion by inenible Degrees; 'tis demonrated, that if the Earth wims in a Fluid, its Denity mut be equal to that of the Earth; and in cae its Denity be the ame, all the Bodies we endeavour to move mut meet with an inuperable Reitance. regard to the great Vortices, they are till more chimerical, and 'tis impoible to make them agree with Kepler's Law, the Truth of which has been demontrated. Sir Iaac hows, that the Revolution of the Fluid in which Jupiter is uppos'd to be carried, is not the ame with regard to the Revolution of the Fluid of the Earth, as