A catalogue of optica, mathematical, and philosophical instruments, made and sold by W. and S. Jones / [William Jones].
- William Jones
- Date:
- 1814
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.
51/904 page 21
![tlie year 1774.* The common solar microscope does not shew the surface of any object, whereas the opake solar microscope not only magnifies the object, but exhibits on a screen an expanded picture of its surface, with all its colours, in a most beautiful manner. About the year 1774, I invented the improved lucernal micros- cope; this instrument does not in the least fatigue the eye: it shews all opake objects in a most beautiful manner; and trans- parent objects may be examined by it in various ways, so that no part of an object is left unexplored; and the outlines of all may be taken with ease, even by those who are most unskilled in drawing. INI. L. F. Dellebarre published an account of his microscope in the year 1777. It does not appear from this, that it was superior in any respect to those that were made in England, but was inferior in others; for those published by my father in 1771 possessed all the advantages of Dellebarre’s in a higher degree, except that of changing the eye glasses. * Martin’s Description and Use of an Opake Solar Microscope. The merits and ingenuity in constructing and improving microscopes by this learned optician, seem to be unnoticed by our late author. The following pamphlets by Mr. B. Martin are, among others of his valuable publications, instances of his indefatigable industry. Description and Use of a Pocket Reflect- ing Microscope, with a Micrometer; 1/39. Micrographia Nova, or a New Treatise on the Microscope; 1742. Description of a New Universal Microscope; a Postscript to his New Elements of Optics ; 1759- Description of several Sorts of Microscopes, and the Use of the Reflecting Telescope, as an universal Perspective for viewing every Sort of Objects. Optical Essays; 1770- A Description and Use of a Proportional Camera Obscura, with a Solar Micros- cope adapted thereto, annexed to his Description of the Opake Solar Microscope above-men- tioned. Description of a New Universal Microscope; 17/6- Description and Use of a Gra- phical Perspective and Microscope; 1771- Microscopium Polydynamicum, or a New Con- struction of a Microscope; 1771- An Essay on the genuine Construction of a standard Microscope and Telescope; 177®- Microscopium Pantometricum, or a new Construction of a Micrometer adapted to the Microscope. The most essentia] articles in the above works will; be hereafter described. Edit.](https://iiif.wellcomecollection.org/image/b22006552_0051.jp2/full/800%2C/0/default.jpg)
