INDEX TO VOL. I. 



, Hermann, structural relations 



of volcanic rocks, 233. 

 Acosta, Joseph de, Historia Natural de 



las Iiidias, 48, 187. 

 Adams, Mr., Planet Neptune. See 



note by Translator, 74 76. 



PJEgos Potamos, on the aerolite of, 

 103, 109,110. 

 jElian, on Mount Etna, 225. 



Aerolites (shooting stars, meteors, me- 

 teoric stones, fire-balls, &rc.), general 

 description of, 97 125; physical 

 character, 98 111 ; dates of remark 

 able falls, 101 ; their planetary velo- 

 city, 102 107; ideas of the ancients 

 on, 101, 102; November and August 

 periodic falls of shooting stars, 105 

 107, 111 113; their direction from 

 one point in the heavens, 106; alti- 

 tude, 107 ; orbit, 115 ; Chinese notices 

 of, 116; media of communication 

 with other planetary bodies, 125; 

 their essential difference from comets, 

 126; specific weights, 102, 103; large 

 meteoric stones on record, 103; 

 chemical elements, 104, 117 119; 

 crust, 117, 118; deaths occasioned 

 by, 124. 



^schylus, ' Prometheus Delivered,' 

 102. 



Agassiz, Researches on Fossil Fishes, 

 26, 275279. 



Alexander, influence of his campaigns 

 on physical science, 362, 363. 



Alps, the, elevation of, 6, 7. 



Amber, researches on its vegetable ori- 

 gin, 287 ; G b'ppert on the amber tree 

 of the ancient world (Pinites succi- 

 fer), 287. 



Ampere, Andre Marie, 40, 187, 234. 



Anaxagoras, on aerolites, 109, 110; on 

 the surrounding ether, 123. 



Andes, the, their altitude, &c. See 

 Cordilleras. 



Anghiera, Peter Martyr de, remarked 

 that the palraeta and pineta were 

 found associated together, 285 286; 



first recognized (1510) that the limit 

 of perpetual snow continues to as- 

 cend as we approach the equator, 

 336. 



Animal life, its universality, 350 354 ; 

 as viewed with microscopic powers 

 of vision, 349 355; rapid propaga- 

 tion and tenacity of liie in animal- 

 cules, 352355; geography of, 349 

 355. 



Anning, Miss Mary, discovery cf the 

 ink bag of the sepia, and of copro- 

 lites of fish, in the lias of Lyme 

 Regis, 273, 274. 



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

 See notes by Translator, 273, 274, 

 277, 284, 290. 



Apian, Peter, on comets, 86. 



Apollonius Myndius, described the 

 paths of comets, 89. 



Arago, his ocular micrometer, 18; 

 chromatic polarization, 33; optical 

 considerations, 68; on comets, 8i 

 91 ; polarization experiments on the 

 light of comets, 90, 91; aerolites, 

 101 ; on the November fall of me- 

 teors, 112; Zodiacal light, 132; 

 motion of the solar system, 136, 137; 

 on the increase of heat at increasing 

 depths, 166; magnetism of rotation; 

 172; horary observations of declina- 

 tion at Paris compared with simul- 

 taneous perturbations at Kasan, 185 ; 

 discovery of the influence of mag- 

 netic storms on the course of the 

 needle, 189; on south polar bands, 

 192; on terrestrial light, 197; phe- 

 nomenon of supplementary rainbows, 

 217; observed the deepest Artesian 

 wells to be the warmest, 220; expla- 

 nation of the absence of a refrigera- 

 tion of temperature in the lower 

 strata of the Mediterranean, 308; 

 observations on the mean annual 

 quantity of rain in Paris, 341; his 

 investigations on the evolution of 

 lighting, 345. 



