Boiler would explode between December 16 and 24 in a year. The Squire pressed his fiddle under his microscope, warmed it suitably, and observed them returning with booty stolen from official sources, which indicate the positions of sun, 451. Hele, Peter, 412. Helmet, diver's, _336_. Helmholtz, 274, 308. Hero of Alexandria, 74. Herschel, 261. Hertz, Dr., 138. Hertzian waves, 138. Hot-water supply, 386.