References for: Longitude and the Académie Royale
- L A Brown, The Story of Maps (New York, 1951).
- S Chapin, A survey of the efforts to determine longitude at sea, 1660-1760, Navigation 3 (7) (1953).
- R Eck, Tobias Mayer, Johann David Michaelis, Carsten Niebuhr und die Göttinger Methode der Längenbestimmung, Gauss-Ges. Göttingen Mitt. 22 (1985), 73-81.
- E G Forbes, The scientific and technical bases for longitude determination at sea, NTM Schr. Geschichte Natur. Tech. Medizin 16 (1) (1979), 113-118.
- E G Forbes, Schultz's proposal for finding longitude at sea, J. Hist. Astronom. 2 (1) (1971), 35-41.
- E Guyot, Histoire de la détermination des longitudes (La Chaux-de-Fonds, 1955).
- D Howse, Greenwich time and the discovery of the longitude (Oxford, 1980).
- W Kokott, Astronomische Längenbestimmung in der frühen Neuzeit, Sudhoffs Arch. 79 (2) (1995), 165-172.
JOC/EFR February 1997
MacTutor History of Mathematics
[http://www-history.mcs.st-andrews.ac.uk/HistTopics/References/Longitude1.html]