Chapter VII: JEAN BERNOULLI (1744-1807), grandson of the first Jean Bernoulli,

and son of the second of that name, was born at Basel on the 4th of November 1744. He studied at Basel and at Neuchatel, and when thirteen years of age took the degree of doctor in philosophy. At nineteen he was appointed astronomer royal of Berlin. Some years after, he visited Germany, France and England, and subsequently Italy, Russia and Poland. On his return to Berlin he was appointed director of the mathematical department of the academy. Here he died on the 13th of July 1807. His writings consist of travels and astronomical, geographical and mathematical works. In 1774 he published a French translation of Leonhard Euler's _Elements of Algebra_. He contributed several papers to the Academy of Berlin.