86ii 



COSMOS 



August, his pdychrometer, 332. 



Augustine, St., his views on spontaneous 

 generation, 345, 346. 



Aurora Borealis. general description of, 

 193-202; origin and course, 195, 196; 

 altitude, 199 ; brilliancy coincident with 

 the fall of shooting stars, 126, 127; 

 whether attended with crackling sound, 

 199 200; intensity of its light, 201. 



Bacon, Lord, 53, 58 ; Novum Organon, 

 290. 



Baer, Von, 337. 



Bai-ometer, the, increase of its height, at- 

 tended by a depression of the level of 

 the sea, 298 ; hftrary oscillations of, 314, 

 315. 



Batten, Mr., letter, on the snow-line of the 

 two sides of the Himalaya^, 331, 332. 



Beaufort, Capt., observed the emissions 

 of inflammable gas, on the Caramanian 

 coast, as described by Pliny, 223. See, 

 also, note by Translator, 223. 



Beaumont, Elie de, on the uplifting of 

 mountain chains, 51, 300 ; influence of 

 the rocks of melaphyre and serpentine, 

 in the southern declivities of the Alps, 

 on pendulum experiments, 167; con- 

 jectures on the quartz strata of the Col 

 de la Poissoni^re, 266. 



Leccaria, observation of steady luminous 

 appearance in the clouds, 202 ; of ligbt- 

 ning clouds, unaccompanied by thun- 

 der or indications of storm, 337. 



Beechey, Capt., 97 ; observations on the 

 temperature and density of the water 

 of the ocean under dift'erent zones of 

 longitude and latitude, 306. 



Bembo, Cardinal, his observations on the 

 eruptions of Mount iEtna, 229 ; theory 

 of the necessity of the proximity of vol- 

 canoes to the sea, 243 ; vegetation on 

 the declivity of ^tna, 347. 



B§rard, Capt, shooting stars, 119. 



Bertou, Count, his barometrical measure- 

 ments of the Dead Sea, 296. 

 ^Berzelius on the chemical elements of 

 aerolites, 130, 131. 



Benzenberg on meteors and shooting 

 stars, 119, 120 ; their periodic return in 

 August, 125. 



Bessel's theory on the oscillations of the 

 pendulum, 44 ; pendulum experiments, 

 64 ; on the parallax of 61 Cygni, 88 ; on 

 Halley's comet, 102, 103, 104 ; on the as- 

 cent of shooting stars, 123 ; on their par- 

 tial visibiUty, 128 ; velocity of the sun's 

 translstory motion, 145 ; mass of the 

 star 61 Cygni, 148 ; parallaxes and dis- 

 tances of fixed stars, 153; comparison 

 of measurements of degrees, 165, 166. 



Plot on the phenomenon of twilight, 118 ; 

 on the zodiacal light, 141 ; pendulum 

 experiments at Bordeaux, 170. 



Biot, Edward, Chinese observations of 



comets, 101, 109 ; of aerolites, 128. 

 Bischof on the interior heat of the globe, 



^J, 219, 235, 244, 294. 

 61umenbach, his classi^cation of the races 

 of men, 356. 



Bockh, origin dKiie atcient myth of tb* 

 Nemean lunar lion, 134, 135. 



Boguslawski, falls of shooting stars, 119 

 128. 



Bonpland, M., and Humboldt, on the po- 

 lagic shells found on the ridge of the 

 Andes, 45. 



Bopp, derivation of the word Cosmos, 

 70. 



Boussingault, on the depth at which is 

 found the mean annual temperrture 

 within the tropics, 175; on the volca- 

 noes of New Granada, 217 ; on the tem- 

 perature of the earth in the tropics, 220 

 221 ; temperature of the thermal springs 

 of Las Trincheras, 222; his investiga- 

 tions on the chemical analysis of the at- 

 mosphere, 311, 312 ; on the mean an- 

 nual quantity of rain in dift'erent parts 

 of South America, 333, 334. 



Bouvard, M., 105 ; his observations on that 

 portion of the horary oscillations of tho 

 pressure of the atmosphere, which de 

 pends on the attraction of the moon 

 313. 



Bramidos y truenos of Guanaxuato, 209, 

 210. 



Brandes, tails of shooting stars, 114, 1 16 

 height and velocity ot shooting stars, 

 120 ; their periodic falls, 125, 126. 



Bravais, on the Aurora, 201 ; on the daily 

 oscillations of the barometer in 70'' 

 north latitude, 314 ; distribution of the 

 quantity of rain in Central Europe, 334 ; 

 doubts on the greater dryness of mount- 

 ain air, 334. 



Brewster, Sir David, first detected the 

 connection between the curvature of 

 magnetic lines and my isothermal lines 

 193. 



Brongniart, Adolphe, luxuriance of the 

 primitive vegetable world, 218 ; fossil 

 flora contained in coal measures, 280. 



Brongniart, Alexander, formation of rib- 

 bon jasper, 259 ; one of the founders of 

 the archaeology of organic life, 273. 



Brown, Robert, flrst discoverer ( )f molec- 

 ular motion, 341. 



Bach's, Leopold von, theory on the eleva- 

 tion of continents and mountain chains, 

 45; on the craters and circular form 

 of the island of Palma, 226 ; on volca- 

 noes, 234, 238, 242, 243, 247 ; on meta- 

 morphic rocks, 249-252, 260, 263, 264 ; 

 on the origin of various conglomerates 

 and rocks of detritus. 269 ; classification 

 of ammonites, 276, 277; physical causes 

 of the elevation of continents, 295 ; on 

 the changes in height of the Swedish 



Buckland, 272 ; on the fossil flora of the 

 coal measures, 279. 



Buffbn, his views on the geographical dis- 

 tribution of animals, 348. 



Burckhardt, on the volcano of Medina, 

 246 ; on the hornitos de JoruUo, see 

 note by Translator, 230. 



Burnes, Sir Alexander, on the purity of 

 the atmosphere in Bokhara, 114<( prop- 

 agation of shof'ks of earthquakes, 21? 



