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You are here: Collections Database/ collections Inventory for A892
| Collection Index: | DE LA CAILLE, Abbe Nicolas Louis, Astronomer, 1713-1762 | | | Collection Name: | Abbe Nicolas Louis DE LA CAILLE, 1713-1762 | |
| A892 | Abbe Nicolas Louis DE LA CAILLE, 1713-1762 (Astronomer) | | | | | | | | | | Copyright 2011, Historical Papers, The Library, University of the Witwatersrand, Johannesburg, South Africa | | | | | | | | | | Notebook relating to the measurements of the Cape Arc of Meridian by de la Caille | | | | | | | | | 1 | Abbe Nicolas Louis DE LA CAILLE's Working Notebook, 1746-1754 | | | | | | | | | | 172 pages (38 blank), Holograph | | | | | | | | | | Bound in 18th century suede, this 16,5 x 21,5 cm notebook contains observations made by De la Caille at the Cape and elsewhere; a list of expenses in connection with his observatory at St. Martin (Paris); and details of the mathematical basis for his calculations, including lists of formulae and trigonometrical proofs, used as an aide-memoire during his travels. There are calculations of some star coordinates, apparently made at the Cape, and, most important of all, a calculation of the difference in latitude between the Cape and Klipfontein for his determination of an arc of the meridian. | | |
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