A catalogue of optica, mathematical, and philosophical instruments, made and sold by W. and S. Jones / [William Jones].

  • Jones, William, 1763-1831
Date:
[1830]
Catalogue details

Licence: Public Domain Mark

Credit: A catalogue of optica, mathematical, and philosophical instruments, made and sold by W. and S. Jones / [William Jones]. Source: Wellcome Collection.

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    Multiplying glasses, making one object appear many, 35. to V set of six coloured anamorphoses, or deformed pictures, rectified by a polished metallic cylinder .. sB s. d. 0 10 o 2 12 0 10 8 13 10 8 13 16 11 12 0 1 O o 4 MATHEMATICAL INSTRUMENTS. HEODOLITES of the common, four-sights, construction, and of the best workmanship, from 4l. 45. to .. . . . • • A 5-inch theodolite, with a telescope* level, and vertical arch Ditto 0-inches, with parallel plates, and tangent screw ad¬ justments, &c. divided to three minutes .. . • . Ditto with rack-work motions, divisions to a minute . . • • 0 A 4-inch improved ditto, by which the vertical and hori¬ zontal angles are shewn at the same time, with rack-work motions, and portable parallel piate sraves, Ac. Ditto, ditto, silver limb.* ’ ‘ '■* * ’ A new-improved seven-inch theodolite, with two achromatic telescopes, and contrivances for very accurate adjustments 33 12 An Eight inch ditto. 09 A. Twelve inch repeating circle, on the French construction 00 An Eighteen inch ditto.ditto., Circumferentors much usedinwoody countries,from2/. -j. to Jones’s improved six-inch ditto, rack adjustments, folding sights, vernier to three minutes, divided cover, spirit 1level, Ac, contrived to answer the purpose of a theodolite and altitude instrument, with spare points for the half legs, par¬ ticularly adapted and now generally used tor the purposes of mining.... * * * * *. A Brass Cylinder surveying cross 10>\ 6a. with statt --- Ditto with compass, agate capped needle, Ac. .. W. Jones’s improved ditto divided limb by lack adjustment, makino- a portable cross-staff, compass, and theodolite.. .. Common3six-inch spirit levels, in brass from 95. to.• Spirit levels, with 12 inch achromatic telescope best staves Ditto, with telescope, compass box, and best adjustments .. Ditto' with eighteen-inch telescope and circumferentor .... Two-feet ditto...f*;. Strong ditto, most accurate and durable kind . %. A pair of Station six-feet levelling staves, sliding vanes, .. Plane tables,with index, sights,&c.complete, from 4/. 145.6V/. to Pantagraphs, by which any person unskilled in drawing may copy plans, surveys, profiles, drawings, 8cc. in any pro¬ portion to the original, one to three feet in length, l/.l 85.. to Perambulators or measuring wheels, upon an improved prin¬ ciple, from 7A 17^* 1®.* . A new pocket map-meter, that correctly measures routs, boundaries, cross-roads, &c. of maps, from U. 105. to.. Gunter’s four-pole stout measuring chain, 105. Od. 125. & __two-feet navigation scale, from 35. to. __ditto improved by Donn, with directions. O _-two-feet sliding navigation scales.- ........ 0 ^——three-feet ditto improved by Robertson, with brass adjusting screws, &c, being the completes! scale of the kind 1 / 0 1 3 1 6 7 10 12 15 2 <5 0 0 0 o 0 o 0 o o o o o 17 IS 15 3 11 6 17 JO 12 15 IS If) 0 o 0 o (3 0 6 o 0 o o 6 6 16 6 10 10 0 2 O 0 12 15 4 6 9 6 O 0 0 o