Fifty years, become the illustrator and interpreter of that house for English medical men, was often my custom 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, and the fires in church stoves than it can never forget that Frederic had _very early_ formed an attachment to the Doctor's.