PLATE IV.
Is a true Delineation of the solar System, with the Trajectories of three of the principal Comets, whose Periods and Orbits have been accurately determined, and are represented in their true Proportion and Position to one another, and the Order of the Planets round the Sun, marked with their respective Characters, viz. ♄, for Saturn, ♃, Jupiter, ♂, Mars, ♁, the Earth, ♀, Venus, and ☿, Mercury. The Scale being nearly five hundred and eighteen Millions of Miles to an Inch.