A catalogue of optica, mathematical, and philosophical instruments, made and sold by W. and S. Jones / [William Jones].
- William Jones
- Date:
- [1830]
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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![£. *• </• Reflectors upon the usual Gregorian construction are made with thevertica 7 upon a new principle, jo <zj render them more firm and stead* while in use. A four feet, 7-inch aperture, Gregorian reflector 5 with the vertical motion upon a new-invented principle, as well as apparatus to render the tube more steady in ob¬ servation; according to the additional apparatus of small speculums, eye-pieces, micrometers, &c. from 80/. to.... 120 0 0 Three feet long, mounted on a common brass stand,. 23 2 0 Do. with rack-work motions, improved mounting, and metals 39 18 0 Two feet long, without rack-work, and with four magnify¬ ing powers, improved... 15 15 O Ditto improved, with rack-work motions. 22 1 O Eighteen-inch on a plain stand. 9 9 0 Twelve inch ditto.... 0 0 O Telescopes,both refracting and reflecting, fitted up with equa¬ torial, &c. motions, micrometers, adjusting, compensating, &c. apparatus, for the most accurate astronomical purposes Micrometers, upon the best principle, adapted to either of the refract'ng or reflecting telescopes, from 3/. I3s.(3d. to 10 10 O Microscopes, common sort, from 5j. to. 1 1 O Wilson’s single pocket microscopes, from ll. 4s.. to. 3 13 O Improved single and compound microscopes, in flat ma¬ hogany boxes, from ]/. l8j.to.*. 4 4 O Compound three pillar ditto, from 3/. 3j. to. 5 15 6 Jones’ new improved universal ditto.....• 7 7 O Ditto, with the most complete apparatus, and with addi¬ tional magnifiers of great power from 1 ll. 11 j. to,..... 14 14 0 Patent Lamps with large silvei speculum and condensing lens adapted to ditto ...• *. ^ ^ ^ Solar microscopes in brass, improved .. O O O The new opake and transparent solar A single microscopes, 12 12 O Ditto, larger size, with additional megalascopic apparatus, 19 19 0 Solar and best compound, combined in one case.... 25 4 0 A new lanthorn night microscope with apparatus, to repre- sent the object on a screen or plate of roughed glass .... 7 17 O A roughed glass, mounted on frame, for ditto... 1 10 0 The Lucernal Microscope, as improved by IV. Jones, exhibiting images of opake and transparent objects, by night or day, in a manner singularly pleasing, biilliant, and distinct, with upwards of 100 objects, proper appa¬ ratus, Argand’s lamp, &c...■ • • * ^ ^ Ditto combined with solar, compound,&c. apparatus, torm- ino- a perfect collection of microscopical apparatus.. 42 0 0 A portable optical apparatus, consisting of a scioptic ball and socket, a solar microscope, Wilson’s microscope, a pocket compound microscope, a pocket telescope, and solar telescope, in mahogany and brass, with directions. 4 4 O Pocket microscopes for opake objects, from l6j. to. 2 12 Botanic microscopes for flowers,. &c. from Qs. to ......... 1 11 Elliss’s aquatic microscope, with apparatus for botanical purposes, in mahogany or leather cases ..*•’*'** ^ ^ A new universal pocket ditto, adapted to all sorts of objects 1 8 0 Ditto with adjusting screw, silver speculum, &c. 2 10 O Set of glass micrometers to 1000 for microscopes 1 1 ^](https://iiif.wellcomecollection.org/image/b30381897_0003.jp2/full/800%2C/0/default.jpg)
