The GREAT ORRE ORREent forts Four Feet in Diameter Made in THO: WRIGHT Mathematical Inft ment-maker TO HIS MAJESTY THE Description and Use OF THE GLOBES, AND THE ORRER Y. To which is prefixed, By way of INTRODUCTION, a Brief Account of the SOLAR SYSTEM. By JOSEPH HARRIS. The SECOND EDITION. LONDON: Printed for THOMAS WRIGHT, Mathematical In- M.DCC.XXXII. ADVERTISEMENT. R. WRIGHT has lately made feveral very large ORRERYS, with all the Motions of the primary and fecondary PLANETS, which makes the Price very great: But being willing that Academies, Schools, &c. fhould have the Benefit of this useful Machine, he has contrived an ORRERY, which exhibits what relates to the Motions of the Sun, Earth and Moon; to be fold at a very moderate Price. He also has great Choice of Mathematical Inftruments ready made by him; as Cafes for Drawing, Surveying Inftruments, Sun-Dials, Weather-Glaffes, &c. 2-28-47 APE THE F the Order, and Periods of the Pri- mary Planets revolving about the Sun; -That the Planets turn round the Sun. -That the Earth also turns round the Sun. 12 |