There are several men in New-York, who go about with a wheel-barrow, on which is a grind-stone, rigged in such a way as to be easily turned with the foo while the hands apply scissors or a knife to the stone. Another may be seen with his machine slung on his back, and when a customer hails, he will quickly set his grindstone in motion. They strike a bell, as they walk along,as a sign to those who may wish any knives or scissors ground.