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GARRARD (William). Copious Trigonometrical Tables, Shewing the Results in all Cases of Plane Trigonometry, by Inspection. Intended to Complete the Requisite Tables to the Nautical Almanack; and as a Necessary Companion to the Theodolite. London: Printed for the Author, by J. Moore, 1789. First edition, 13, [291]pp. [Bound with:] ----. Longitude Made Easy, from the Moon's Altitude Only.1791

Chelsea: Printed for the Author, by D. Jaques, First edition, [34]pp., final leaf blank, final signature bound out of order. 2 works bound in one, recent full calf to style, spine with five raised bands, intricate gilt tooling to compartments, red morocco title label lettered in gilt. Prior to going to Greenwich as Maskelyne's Assistant in 1788, William Garrard (active 1781-1808) was an usher at Mr Bettesworth's Marine Academy, Ormond House, Paradise Row, Chelsea. The tables within the first work, which are not paginated, consist of: Table I, Where in the Distance is Extended to Three Hundred and the Angles Shewn to Every Ten Minutes of the Quadrant. Table II, Being a Traverse Table of Quarter Points Wherein the Distance is Given From 1 to 300. Table III, From Whence the Sides of Plane Right Angled Triangles May be Taken to Six Places of Figures, Being the Radical Table on White the Proceeding Two are Founded. Table IV, Being An Improved Table of Meridional Parts For More Accurately Solving the Cases of Mercator's Sailing. The second work contains a two page preface followed by Tables and Observations. Both works are rare and recorded by ESTC in only a handful of locations.

Stock #37057

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