Inventor of the steam-engine, born probably in the Strand; early gave himself to mechanical studies; was an ardent Royalist; negotiated with the Irish Catholics on behalf of the king; was discovered and imprisoned on a charge of treason, but his release being procured by the king, he spent some time in exile; on his return he was again imprisoned and then released; wrote an account of inventions amounting to a hundred, "A Century of Inventions" as he called it, one of which he described as "an admirable and most forcible way of driving up water by fire" (1601-1667).