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The 18th century was a wealth of knowledge, exploration and rapidly growing technology and expanding record-keeping made possible by advances in the printing press. In its determination to preserve the century of revolution, Gale initiated a revolution of its own: digitization of epic proportions to preserve these invaluable works in the largest archive of its kind. Now for the first time these high-quality digital copies of original 18th century manuscripts are available in print, making them highly accessible to libraries, undergraduate students, and independent scholars. Medical theory and practice of the 1700s developed rapidly, as is evidenced by the extensive collection, which includes descriptions of diseases, their conditions, and treatments. Books on science and technology, agriculture, military technology, natural philosophy, even cookbooks, are all contained here. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification: ++++ British Library T098844 Includes: 'Directions for making the best composition for the metals of reflecting telescopes; and the method of .. giving them the true parobolic figure. By the Rev'd John Edwards, ' with 'An account of the cause and cure of the tremors, particularly affecting reflecting telescopes .. By the Rev'd John Edwards, ' with separate pagination and register and a half-title to each part. With two leaves of advertisements after p.164. London: printed by C. Buckton. And sold by P. Elmsly, 1786. [16],164, [4],60p.; 8°
The 18th century was a wealth of knowledge, exploration and rapidly growing technology and expanding record-keeping made possible by advances in the printing press. In its determination to preserve the century of revolution, Gale initiated a revolution of its own: digitization of epic proportions to preserve these invaluable works in the largest archive of its kind. Now for the first time these high-quality digital copies of original 18th century manuscripts are available in print, making them highly accessible to libraries, undergraduate students, and independent scholars. Medical theory and practice of the 1700s developed rapidly, as is evidenced by the extensive collection, which includes descriptions of diseases, their conditions, and treatments. Books on science and technology, agriculture, military technology, natural philosophy, even cookbooks, are all contained here. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to insure edition identification: ++++ British Library T098843 Includes: 'Directions for making the best composition for the metals of reflecting telescopes; and the method of .. giving them the true parabolic figure. By the Rev'd John Edwards, ' with: 'An account of the cause and cure of the tremors particularly affe London: printed by William Richardson; and sold by Peter Elmsly, 1783. [16],168,60, [4]p.; 8°
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1783 edition. Excerpt: ... Figure is put between Jupiter and the Point; and when the Satellite is receding from Jupiter, the Figure is put on the other Side of the Point. The Satellites are in the superior Parts of their Orbits, or Furthest from the Earth, when they are marked to the right Hand or West of Jupiter approaching him; or to the left Hand or East of Jupiter receding from him; but are in the inferior Part of their Orbits, or nearest to the Earth, when they are marked to the right Hand or West of Jupiter receding from him, or to the left or East of Jupiter approaching him. The Cypher o, sometimes annexed to the Figure of the Satellite towards the Margin, signifies that it is invisible on the Face of Jupiter; and the black Mark signifies that it is invisible, being eclipsed in Jupiter.s Shadow, tr behind, Jupiter eclipsed by his Body. THE EN D, DIRECTIONS FOR MAKING THE BEST COMPOSITION FOR The Metals of Reflecting Telescopes; AND THE METHOD OF CASTING, GRINDING, POLISHING, AND GIVING THEM THE TRUE PARABOLIC FIGURE. B Y The Rev'd JOHN EDWARDS, B.A Published by ORDER of the COMMISSIONERS OF LONGITUDE, DIRECTIO NS for making the best Compaction for the Metals of Reflecting TeLescopes, and the Method of casting, grinding, policing, and giving the great Speculum the true parabolic Figure. By the Rev'd John Edwards, B. A. TH E Methods in general used for casting, grinding, and polishing the Metals for Reflecting Telescopes being well known to Workmen, and having been treated of in the most full and satisfactory Manner in Dr. Smith's Optics, and also by Mr. Mudge in the Philosophical Transactions, Vol. Lxvii, Part i, I (hall not dwell upon these Points, but shall add such Directions and Observations of my own as I have found by Experience to answer much better...