Article ID: CBB000933566

William Wallace's Chorograph (1839): A Rare Mathematical Instrument (2010)


In 1839, William Wallace, Edinburgh University's newly retired professor of mathematics, invented the chorograph, a mathematical instrument for use in cartography and navigation. This instrument, owned by a descendant of Wallace, has recently come to light. As it failed to replace the station pointer, no other copies are known to have survived. Its mode of operation and its merits and demerits are here described.


Description On a mathematical instrument for use in cartography and navigation.

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Authors & Contributors
Craik, Alex D. D.
Panteki, M.
Hentschel, Klaus
Schramm, Matthias
Mörzer Bruyns, Willem F. J.
McConnell, Anita
Bulletin of the Scientific Instrument Society
Der Globusfreund: Wissenschaftliche Zeitschrift für Globen- und Instrumentenkunde
Historia Mathematica
Zeitschrift für Geschichte der Arabisch-Islamischen Wissenschaften
British Journal for the History of Science
British Society for the History of Mathematics Bulletin
Oxford University Press
Museu de Astronomia e Ciências Afins (MAST)
British Library
Scientific apparatus and instruments
Instruments, navigational
Wallace, William
Burney, Leroy Edgar
Peacock, George
Carlyle, Thomas
Leslie, (Sir) John
Ramsden, Jesse
Time Periods
19th century
18th century
17th century
20th century
16th century
Early modern
Great Britain
British Isles
London (England)
Great Britain. Royal Navy
Royal Observatory Greenwich
National Maritime Museum (Great Britain)
Royal Astronomical Society

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