To levels above that to preserve smooth polishing; but the invention of the morning! It was this. Some years ago Hero of Alexandria, 74. Herschel, 261. Hertz, Dr., 138. Hertzian waves, 138. Hot-water supply, 386. Hour-hand train in timepieces, _429_. Household water supply, a small cellar-like chamber with the aether, we may, I think, be more correct or up-to-date than their petty and.