INDEX TO VOL. I. 



ABICH, Hermann, etructural relations of 

 volcanic rocks, 234. 



Acosta, Joseph de, Historia Natural de las 

 Indias, 66, 193. 



Adams, Mr., planet Neptune. See note 

 by Translator, 90, 91. 



iEgos Potamos, on the aerolite of, 117, 

 122. 



filian on Mount ^tna, 227. 



Aerolites (shooting stars, meteors, mete- 

 oric stones, fire-balls, &c.), general de- 

 scription of, 111-137 ; physical charac- 

 ter, 112-123; dates of remarkable falls, 

 114, 115 ; their planetary velocity, 116- 

 120; ideas of the ancients on, 115, 116; 

 November and August periodic falls of 

 shooting stars, 118-120, 124-126; their 

 direction from one point in the heav- 

 ens, 120 ; altitude, 120; orbit, 127; Chi- 

 nese notices of, 128 ; media of commu- 

 nication with other planetary bodies, 

 136 ; their essential ditlerence from 

 comets, 137 ; specific weights, 116, 117 ; 

 large meteoric stones on record, 117 ; 

 chemical elements, 117, 129-131 ; crust, 

 129, 130; deaths occasioned by, 135. 



ffischylus, " Prometheus Delivered," 115. 



-Etna, Mount, its elevation, 28, 229 ; sup- 

 ■^josed extinction by the ancients, 227 ; 

 its eruptions from lateral fissures, 229 ; 

 similarity of its zones of vegetation to 

 those of Ararat, 347. 



Agassiz, Researches on Fossil Fishes, 46, 

 27.3-277. 



Alexander, influence of his campaigns on 

 physical science, 353. 



Alps, the, elevation of, 28, 29. 



Amber, researches on its vegetable origin, 

 284 ; Goppert on the amber-tree of the 

 ancient world (Pinites succifer), 283. 



Ampere, Andr6 Marie, 58, 193, 236. 



Anaxagoras on aerolites, 122 ; on the sur- 

 rounding ether, 134. 



Andes, the, their altitude, &c. See Cor- 

 dilleras. 



Anghiera, Peter Martyr de, remarked that 

 the palmeta and pineta were found as- 

 sociated together, 282, 283 ; first recog- 

 nized (1510) that the limit of perpetual 

 snow continues to ascend as we ap- 

 proach the equator, 329. 



Animal life, its universality, 342-345; as 

 viewed with microscopic powers of vis- 

 ion, 341-346; rapid propagation and te- 

 nacity of life in animalcules, 344-346 ; 

 geography of, 341-346. 



Anning, Miss Mary, discovery of the ink 

 bag of the sepia, and of coprolites of 



fish, in the liaa of Lyme Regis, «7l, 



272. 

 Ansted's, D. T., "Ancient World." Set 

 notes by Translator, affl, 272, 274, 281 

 287. 

 Apian, Peter, on comets, 101. 



Apollonius Myndius, described the paths 

 of comets, 103. 



Arago, his ocular micrometer, 39 ; chro- 

 matic polarization, 52 ; optical consid- 

 erations, 85; on comets, 99-106; polar- 

 ization experiments on the light of com- 

 ets, 105; aerolites, 114; on the Novem 

 ber fall of meteors, 124 ; zodiacal light. 

 143; motion of the solar system, 146, 

 147 ; on the increase of heat at increas- 

 ing depths, 173, 174 ; magnetism of ro 

 taiion, 179, 180 , horary observations of 

 declination at Paris compared with si- 

 multaneous perturbations -«t Kasan, 

 191 ; discovery of the influence of mag- 

 netic storms on the course of the nee- 

 dle, 194, 195 ; on south polar bands, 198; 

 on terrestrial light, 202 ; phenomenon 

 of supplementaiy rainbows, 220; ob- 

 served the deepest Artesian wells to be 

 the warmest, 223 ; explanation of the 

 absence of a refrigeration of tempera- 

 ture in the lower strata of the Mediter- 

 ranean, 303 ; observations on the mean 

 annual quantity of rain in Paris, 333 ; 

 his investigations on the evolution of 

 lightning, 337. 



Argelander on the comet of 1811, 109 ; on 

 the motion of the solar system, 146, 149 ; , 

 on the light of the Aurora, 195, 196. 



Aristarchus of Samos, the pioneer of the 

 Copernican system, 65. 



Aristotle, 65 ; his definition of Cosmos, 69 ; 

 use of the term history, 75 ; on comets, 

 103, 104 ; on the Ligyan field of stones, 

 115 ; aerolites, 122 ; on the stone of jEgoa 

 Potamos, 135 ; aware that noises some 

 times existed without earthquakes, 209 , 

 his account of the upheavals of islands 

 of eruption, 241 ; " spontaneous mo- 

 tion," 341 ; noticed the redness assum- 

 ed by long- fallen snow, 344. 



Artesian wells, temperature of, 174, 223. 



Astronomy, results of, 38-40 ; phenonienj 

 of physical astronomy, 43, 44. 



Atmosphere, the, general description of, 

 311, 316 ; its composition and admix- 

 ture, 312; variation of pressure, 313- 

 317 ; climatic distribution of heat, 313, 

 317-323 ; distribut on of humidity, 313, 

 328, 3'i4; electric condition, 314, 335- 

 3.38. 



