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    Johann Bernoulli III. Autograph Letter Signed.
    ALS. "Jean Bernoulli fils." Two pages in French with an integral address sheet, with wax seal, 7.5" x 9", Basel; August 31, 1760. Bernoulli, at age 15, addresses this letter to the Abbé Charles Bossut (1730-1814), professor of mathematics at the École du Génie at Mézières in France, and informs him that the Lyon Academy has awarded their annual prize between Bossut's dissertation one jointly submitted by himself and his friend, a Mr. Jeanneret. Bernoulli states that the prize is a medal, but since a medal cannot be split between the winners, the Academy suggests it will award Bernoulli and Jeanneret money equal to the value of the medal. Bernoulli claims this is fine with him and his collaborator and asks Bossut if he is would agree to this. He then tells Bossut that he conveys best wishes on the success of his dissertation from his father and his uncle Daniel Bernoulli (1700-1782), a Swiss mathematician and scientist. Bernoulli ends his letter by claiming Bossut will surely receive requests to print his work and that if wishes to combine their two prize-winning works, he need only ask and he will be sent a copy of his own dissertation.

    Johann Bernoulli III (1744-1807), also known as Jean, was the grandson of Johann Bernoulli I (1667-1748) and son of Johann II Bernoulli II (1710-1790), was a Swiss astronomer and philosopher. Known around the world as a child prodigy, he earned doctorate in philosophy at the age of thirteen. When Bernoulli was fourteen, he got the degree of master of jurisprudence. At age nineteen, he was appointed astronomer royal of Berlin, and was later appointed director of the mathematical department of the Berlin academy.

    Condition: Letter has the usual folds, slight foxing, small teas along edges of horizontal fold, one of which has been repaired with tape; split at bottom of middle crease, paper loss at top right hand corner of address sheet due to separation from seal when opened. Otherwise good.

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