(1) Born at Braunschweig (Brunswick), April 30, 1777; dietd at Gottingen, February 23, 1855. In his autographs the first name begins with C. The name was originally Johann Carl Friedrich Gauss.

(2) Legendre (1805) was the first to write upon the subject, introducing it in his work on the orbit of comets. The deduction of the law was effected by an Irish-American writer, Adrain, in 1808.

(3) Disquisitiones arithmeticae, Leipzig, 1801; French translation by A.C.M. Poullet-Delisle, Paris, 1807.

(4) With the physicist Weber he laid the foundations for telegraphy.

(5) Theoria motus corporum coelestium in sectionibus conicis solem ambientium, Hamburg, 1809.

(6) His collected works, with biography, were published at Gottingen and Gotha, in eight volumes, 1863-1900. For an interesting personal document see F. klein, "Gauss' Wissenschaftliches Tagebuch, 1796-1814," Mathematische Annalen, LVII, I.