36i 



COSiMOS 



August, his pHychrometer, 332. 



Augustine, St., his views on spontaneous 

 generation, 345, 346. 



\urora 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. 



Barometer, the, increase of its height, at- 

 tended by a depression of the level of 

 the sea, 298 ; horary oscillations of, 314, 

 315. 



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

 two sides of the Himalayas, 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 Poissoniere, 266. 



Eeccaria, observation of steady luminous 

 appearance in the clouds, 202 ; of light- 

 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 difterent zones of 

 longitude and latitude, 306. 



Bembo, Cardinal, his observations on the 

 eruptions of Mount JEtna, 229 ; theory 

 of the necessity of the proximity of vol- 

 canoes to the sea, 243; vegetation on 

 the declivity of jEtna, 347. 



Berard, 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 Cygui, 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 

 translatory motion, 145 ; mass of the 

 star 61 Cygni, 148 ; parallaxes and dis- 

 tances of fixed stars, 153 ; comparison 

 of measurements of degrees, 165, 166. 

 B iot on the phenomenon of twilight, 118 ; 

 on the zodiacal hght 141 ; pendulum 

 experiments at Bordeaux, 170. 

 Biot, Edward, Chinese observations of 



comets, 101, 109 ; of aerolites, 128. 

 FJischof on the interior heat of the globe, 



^i.7, 219, 235, 244, 294. 

 dluraenbach, his classification of the races 

 >t° men, 35i5. 



Bockh, origin of the aLcient myth of tb« 

 Nemean lunar lion, 134, 135. 



Boguslawski, falls of shooting stars, 119 

 128. 



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

 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 temperature 

 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 diflerent parts 

 of South America, 333, 334. 



Bouvard, M., 105 ; his observations on that 

 portion of the horary oscillations of the 

 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 of shooting stars, 

 120 ; their periodic falls, 125, 126. 



Bravais, on the Aurora, 201 ; on the daily 

 oscillations of the barometer in 70<3 

 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, first discoverer f »f molec- 

 ular motion, 341, 

 Buch'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 

 coasts, 295. 

 Buckland, 272 ; on the fossil flora of the 



coal measures, 279. 

 Buftbn, 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, li4ij prop- 

 agation of shocks of earthquakes, 21 a 



