Stevin was a noted mathematician, and also experimented in the construction of wheel vehicles about 1600. He built in his workshop at The Hague a wheeled vehicle that was propelled by sails. This was simply a tray or boat of wood, which hung close to the ground. It was borne on four wooden wheels, each one of which was five feet in diameter, and the after-axle was pivoted to form a rudder. A tall mast was carried amidships, and there was a small foremast that was stayed aft. Large square sails were carried on these masts. A trial trip of this sailing ship on land was made in 1600, when the journey from Scheveningen to Petten, a distance of forty-two miles, was made in about two hours. On this occasion some twenty-two passengers were carried. Prince Maurice of Holland steered, and among the passengers were Grotius, and the Spanish Admiral, Mendoza, who was then a prisoner of war in Holland. Stevin also built a smaller sail vehicle, similar to the one just described, that carried from five to eight persons. Both carriages were used a great deal, running many miles on the Dutch coast. The smaller one was to be seen at Scheveningen as late as 1802. Grotius wrote a poem on these carriages. Bishop Wilkens, in England, also wrote about them in 1648, and showed a drawing that was made from a description given to him by those who had seen the car at work. Howell, a writer of the period, thus quaintly described the Stevin carriage: "This engine, that hath wheels and sails, will hold above twenty people, and goes with the wind, being drawn or moved by nothing else, and will run, the wind being good and the sails hois'd up, about fifteen miles an hour upon the even hard sands." THOMAS WILDGOSSE In 1618, Thomas Wildgosse got out a patent for "newe, apte, of compendious formes or kinds of engines or instruments to ploughe grounds without horse or oxen; and to make boates for the carryage of burthens and passengers runn upon the water as swifte in calmes, and more safe in stormes, than boats full sayled in great wynnes." It is agreed by the best authorities that these vehicles were set in motion by gear worked by the hand of a driver, although Fletcher thinks that steam engines were intended. Additional patents were granted to Wildgosse in 1625. DAVID RAMSEY Associated with Thomas Wildgosse in his experimenting and patenting, in 1618, was David Ramsey, who at that time was Page of the Bed Chamber to James I. of England, and afterwards was Groom of the Privy Chamber to the same monarch. In 1644, Ramsey was again a partner in the grant of a patent for "a farre more easie and better waye for soweing of corne and grayne, and alsoe for the carrying of coaches, carts, drayes, and other things goeing on wheels, than ever yet was used and discovered." This may have been a manually or a steam propelled vehicle. It is most reasonable to suppose that it was the former. JOHANN HAUTSCH Born in 1595. Died in 1670.