Herrick_, xxxvi, 361. ---- ----, of August, 1839, _E. C. Herrick_, xxxvii, 325; xxxviii, 203. ---- ----, ----, at Canton, China, _P. Parker_, xxxviii, 301. ---- ----, of October, 1839, _E. C. Herrick_, xxxviii, 377. ---- ----, of November and December, 1839, _E. C. Herrick_, xxxviii, 377. ---- ----, of November, 1839, _D. Olmsted_, xl, 202. ---- ----, of August, 1840, _E. C. Herrick_, xxxix, 328, 332; xl, 201. ---- ----, of November, 1840, nothing unusual, _D. Olmsted_, xl, 202. ---- ----, of October and December, 1840, _E. C. Herrick_, xl, 203. ---- ----, of April, 1841, _E. C. Herrick_, xlii, 397. ---- ----, of August, 1841, _E. C. Herrick_, xli, 399; xlii, 202. ---- ----, of August and November, abstract of _S. C. Walker's_ paper on, xlii, 401. ---- ----, of November, 1841, xliii, 399. ---- ----, of April, 1842, _E. C. Herrick_, xliii, 212. ---- ----, of August, 1842, _E. C. Herrick_, xliii, 377; xliv, 208. ---- ----, of August 22, 1842, seen in the day time, at Winchester, Va., _C. Chase_, xliv, 418. ---- ----, of November, 1842, _E. C. Herrick_, xliv, 209. ---- ----, of December, 1842, _E. C. Herrick_, xliv, 210. ---- ----, of April, 1843, _E. C. Herrick_, xlv, 230. ---- ----, of August, 1844, _E. C. Herrick_, xlviii, 316. ---- ----, ----, _S. R. Williams_, xlviii, 320. ---- ----, see farther under _Meteor_. ---- ----, attributed to Auroral vapor, xx, 153. ---- ----, _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. ---- ----, ----, motion and mode of revolution, xl, 53. ---- ----, ----, velocity, perihelion distances, position, xl, 53, 54. ---- ----, _Fisher, F. G._, origin of, atmospheric, and connected with electricity, xxviii, 289. ---- ----, _Gruithuisen_, origin of, beyond the earth's atmosphere, from metallic vapors, xxviii, 290. ---- ----, _Halley, E._, suggested the determination of longitude by means of, xlii, 399. ---- ----, _Herrick, E. C._, on the number of showers of, in a year, xxxiii, 360; xxxv, 366; xxxix, 334. ---- ----, ----, facts establishing the August period, xxxiii, 177, 354. ---- ----, ----, observations on the August period, in early times, xxxvii, 337;