1581–1626, English mathematician and astronomer, educated at Westminster School, London, and Christ Church, Oxford. He invented (1618) a small porta...
( r s s´tr t s) (KEY) , fl. 3d cent. B.C., Greek physician, b. Chios. He was the leader of a school of medicine in Alexandria, and his works were inf...
1861–1947, English mathematician and philosopher, grad. Trinity College, Cambridge, 1884. There he was a lecturer in mathematics until 1911. At the ...