CANTOR, MORITZ German mathematician, was born at Mannheim on Aug. 23, 1829. He studied mathematics at Heidelberg, Gottingen and Berlin. In 1853 he became a tutor and in 1863 professor of mathematics at Heidelberg. At a scien tific meeting at Bonn he read a paper on Ramus, Stifel and Car dan ; this was so warmly received that Cantor decided to concen trate on the history of mathematics. His first important book was Mathematische Beitrage zum Kulturleben (1861) ; this was fol lowed by his well known Vorlesungen Tuber die Geschichte der Mathematik, the first volume of which was published in 188o, the second in 1892 and the third in successive parts between 1894 and 1898. By this time Cantor was too old to undertake the fourth volume ; consequently the work was divided between nine men, each responsible for one section and under the editorship of Cantor. This work gives a clear, accurate account of the history of mathematics from earliest times up to 1799. A number of small inaccuracies which were in the V orlesungen have since been corrected by Gustav Enestrom, editor of the Bibliotheca Mathe viatica. Between 1856 and 1898 Cantor wrote a number of papers which were published chiefly in the Zeitschri f t fur Mathematik and Physik, among them being "Euclid and seiner Jahrhundert" (1867) and "Die Romischen Agrimensoren" (1875). Cantor's eyesight failed him towards the end of his life. He died on April so, 1920, at Heidelberg.