Spike Hughes Rare Books

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A note respecting the application of machinery to the calculation of astronomical tables [followed by the integral] - Observations on the application of machinery to the computation of mathematical tables. [the first read 14th June

A note respecting the application of machinery to the calculation of astronomical tables [followed by the integral] – Observations on the application of machinery to the computation of mathematical tables. [the first read 14th June, 1822 and the second read 13th December, 1822. Being Articles XXVI and XXVII] [Vol. 2 with a general title dated 1826 contains Article XII] On a new Zenith Micrometer, [by Babbage, read March 11, 1825, with an illustration on part of plate 2, and another article by him in vol. 3, Part 1, being Article IV] – Notice respecting some errors common to many tables of logarithms.

BABBAGE (Charles). [In Memoirs of the Astronomical Society of London, later the Royal Astronomical Society] Vol. 1. 1822 - Vol. 3. 1827. 4 contributions in 3 vols., 4to, volume 1 in two parts with second part dated 1825, with continuous pagination, [containing the first two papers], volume 2 in two parts dated 1826, with continuous pagination, vol. 3 in two parts, dated 1827 and 1829, with continuous pagination, engr. plates, ex-library with library bindings of quarter brown morocco, cloth sides, with cancelled stamps on the front paste-down e.p.'s of each volume but no stamps in the text or plates, some foxing, mainly to the plates, early paper repair to the blank lower margin of the title and next two leaves in vol. 2. [Charles Babbage, [1792 - 1871], was one of the founders of the Astronomical Society of London, later the Royal Astronomical Society. He took an active part in the administration of the Society but, more importantly, contributed articles relating to the development of computers, resulting in him becoming known as the father of computing. In volume 1, Part 11 with a general title of 1825, are the articles XXVI & XXVII - 'A note respecting the application of machinery to the calculation of astronomical tables' followed by the integral 'Observations on the application of machinery to the computation of mathematical tables,' the first read 14th June, 1822 and the second read 13th December, 1822. Article XXVI is the paper in which Babbage refers to the formula x2+x+41 for calculating prime numbers. For these articles he received the Society's gold medal in 1824. As noted in the presentation 'The principle, which essentially distinguishes Mr. Babbage's invention.is, that it proposes to calculate a series of numbers following any law by the aid of differences; and that, by setting a few figures at the outset, a long series of numbers is readily produced by a mechanical operation.' ] [A heavy set requiring extra postage]