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 ufeful 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 Instruments ready made by him; as Cafes for Drawing, Surveying Inftruments, Sun-Dials, Weather-Glaffes, &c.