Demonstration of astrology, or, A brief discourse, proving the influence of the sun, moon, stars, over this terraqueous globe [electronic resource] : grounded on the fundamental rules of the Copernican system and philosophy, and verified by practical examples and experience : illustrated by diagrams : whereby the art is rendered almost mathematically demonstrable : to which is added, an astrological and philosophical appendix, or second part, treating of this summer's effects, both in the macrocosm as well as microcosm : wherein we have great cause to fear, that the sword, pestilence, and famine will annoy our European territories this ensuing summer / by William Hunt, a lover of the mathematics and natural philosophy.