— —, Arago, hypothesis of a zone of asteroids revolving about the sun, xxxiii, 363.
— —, —, origin of, beyond the atmosphere, xxx, 373.
— —, Bache, A. D., on the non-occurrence of a shower of meteors, Nov. 13, 1834, xxvii, 335; xxviii, 305; xxix, 383.
— —, Benzenberg, J. F., and Brandes, H. W., made the first observations relative to the distances, velocities, &c., xxxv, 366.
— —, Brandes, H. W., investigation of, xv, 168; xxviii, 97; xxxv, 231, 232, 366.
— —, —, number, duration, course of, &c., xv, 168; xxviii, 97; xxxiii, 361.
— —, —, mode of calculation respecting, xxviii, 98.f
— —, —, table of, calculated, xxviii, 101.
— —, Clarke, W. A., on the origin of, xxx, 369.
— —, Erman, origin of, cosmical, xl, 53.