The great ORRERY to face the Title. Plate I. Page 2 Plate II. 28 The Globes 35 Plate III. 194 Plate IV. 200 Plate V. 214 A CATALOGUE Of Mathematical, Philosophical, and Optical Instruments, MADE and SOLD by _BENJAMIN COLE_, At his Shop, the Sign of the _Orrery_, No. 136, in _Fleet street, London_. _l._ _s._ _d._ Variety of pocket cases of Drawing Instruments, } in Silver, from 3l. 3s. to 20 0 0 Ditto, in Brass, from 5s. to 5 5 0 Magazine Cases, in Silver, from 12l. to 150 0 0 Ditto, in Brass, from 5l. to 50 0 0 Circular Compasses to describe a Circle as small } as a pin’s head, from 3s. to } 0 7 6 Long Hand Drawing-pens, from 1s. to 0 5 0 Compasses in Brass, with shifting points, as the } Ink and Black Lead points, from 2s. 6d. to } 1 1 0 Plain Compasses, from 6d. to 0 5 0 Beam Compasses, for drawing large circles, from 12. to 3 0 0 Proportionable Compasses, from 1l. 1s. to 5 5 0 Triangular Compasses, from 14s. to 0 18 0 Elliptical Compasses, for Ovals, from 1l. 11s. 6d. to 5 5 0 Hair Compasses 0 7 6 Bows for drawing curved lines, from 4s. to 0 10 6 Sets of Feather-edge Scales, in Brass, Ivory, or } Wood, from 12s. to } 1 16 0 Plain ditto, or Plotting ditto, in ditto, from 8d. to 0 18 0 Gunter’s 2 feet, and 1 foot Scales, in Brass or } Wood, from 2s. to } 2 2 0 Protractors of all sorts, from 1s. 6d. to 1 16 0 Parallel Rules, from 6 to 36 inches, from 2s. 6d. to 1 16 0 Cross-bar ditto, in Brass, Ivory, or Wood, } from 4½ } inches, to 3 feet, from 10s. 6d. to } 3 0 0 Sectors, in ditto, from 2s. 6d. to 4 14 6 Theodolites, from 3l. 3s. to 6 6 0