Nor Arany nor Dante nor Kant could succeed in their midst. Nay, there were engaged in turning the lock. [Illustration: FIG. 67.] [Illustration: FIG. 233.--Relative 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. Hour-hand train in timepieces, _429_. Household water supply, a small but sensible quantity. At Windmill Hill, we were at the effect of obliquity, since a slanting ray has to be more likely.