1Thomas Jefferson to Peter Carr, 7 September 1814 (Jefferson Papers)
carpenter, ship-wright, plough-wright, wheel wright, mill wright, pump-maker, clock-maker, machinist, optician, metallurgist, founder, cutler, druggist, brewer, vintner, distiller, dyer, painter, bleacher, soap-maker, tanner, powder maker, salt maker, glass maker, to learn as much as shall be necessary, to pursue their art understandingly, of the sciences of