“Keep your nose to the grindstone” is an old adage, and there must be a reason for it, but why would anyone want to do that? –T. M., Baker City, Oreg. Answer: Sounds gruesome, doesn’t it? The reference is to the sense of smell, however, rather than to any sort of applied friction to the nose itself. A good miller could detect the smell of granite if the runner stone and bed stone of the gristmill were too close together during grinding. Millers were constantly adjusting the gap between the two huge, wheel-shape stones to best accommodate the size...



