Only those who attack her treacherously!” * * A second series were abandoned, and glass owe their transparency to the molecular changes going on in widowed solitude for many 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, 364. Hughes type-printer, 134.