Ditto, with Vertical arch, Spirit Levels, } Telescope, _&c._ from 10l. 10s. to } 21 0 0 Plain Tables, from 3l. 3s. to 5 5 0 Circumferentors, the principal Instrument for } Surveying in the West-Indies, from 1l. 16s. to } 3 13 6 Gunter’s four pole chains, from 6s. to 0 12 0 Spirit Levels of all sorts, from 5s. to 12 12 0 Pentographia, for the ready and exact } reduction or copying of Schemes, } Drawings, Prints, _&c._ } 4 14 6 Measuring Wheels for Surveying, } from 4l. 14s. 6d. to } 6 6 0 Hadley’s Quadrants, with Diagonal Divisions 1 14 0 Ditto, with a Nonius, from 2l. 2s. to 3 13 6 Ditto, all in Brass, from 3l. 13s. 6d. to 6 6 0 Davies’s Quadrant, from 12s. to 1 1 0 Cole’s ditto, from 18s. to 1 5 0 Sutton’s ditto 0 6 0 Gunter’s ditto, from 3s. 6d. to 1 1 0 Horizontal Sun Dials, for all Latitudes, } from 5s. to } 10 0 0 Ring Dials, from 10s. 6d. to 21 0 0 Azimuth Compasses, from 5l. 5s. to 10 0 0 Amplitude ditto, from 1l. 7s. to 5 5 0 Mariner’s Compasses, either for the Cabin, } or Binacle, from 7s. 6d. to } 3 13 0 Pocket Compasses, from 1s. to 1 11 6 Large Orreries, from 50l. to 250 0 0 Armillary Spheres, from 12l. to 50 0 0 Seventeen inch Globes 6 6 0 Fifteen inch ditto 5 5 0 Twelve inch ditto 3 3 0 Nine inch ditto 2 2 0 Six inch ditto 1 16 0 Three inch ditto, in a case, from 8s. to 0 10 0 Large double Barrell’d standing air pumps 25 0 0 Apparatus to ditto, from 3l. 3s. to 12 12 0 Double Barrell’d table air pumps, } with their apparatus, from 5l. 15s. 6d. to } 20 0 0 Single Barrell’d ditto 2 12 6 Apparatus to ditto 2 2 0 Electrical Machines, in Brass, with apparatus, } box, _&c._ from 5l. 5s. to } 13 13 0