Prsehn, fai. of stars, 106. 



Franklin, Benjamin, existence of sand 

 banks indicated bv the coldness of 

 the water over them, 314. 



Franklin, Capt., on the aurora, 191, 

 194, 196; rarity of electric explo- 

 sions in high northern regions, 345. 



Freyciuet, pendulum oscillations, 158. 



Fusinierion meteoric masses, 110. 



Galileo, 89, 159. 



Galle, Dr., 75. 



Galvani, Aloysio, accidental discovery 

 of galvanism, 33. 



Gaseous emanations, fluids, mud, and 

 molten earth. 214 217. 



Gaspariu, distribution of the quantity 

 of rain in Central Europe, 341. 



GEIISS, Friedrich.on terrestrial magnet- 

 ism, 172; his erection, in 1832, of a 

 magnetic observatory on a new prin- 

 ciple, 185, 186. 



Gay-Lus.sac, 200, 231, 232,208, 317, 

 318, 342,314. 



Geognostic, or geological description of 

 the earth's surface, 197 290. 



Geognosy, (the study of the textures 

 and position of the earth's surface), 

 its progress, 198, 199. 



Geography, physical, 291316; of 

 animal "life, 349355; of plants, 

 355 360. 



Geographies, Ritter's (Carl), ' Geogra- 

 phy in relation to Nature and the 

 History of Man,' 28, 49, 50; Vare- 

 nius (Bernhard), General and Com- 

 parative Geography, 48, 49. 



Gerard, Capts. A. G. and J. G., on the 

 snow line and vegetation of the Hima- 

 layas, 10,11,338,339. 



German scientific works, their defects, 

 27. 



Geyser, intermittent fountains of, 219. 



Gieseke, on the aurora, 194, 195. 



Gilbert, Sir Humphrey, gulf stream, 

 312,313. 



Gilbert, William, of Colchester, ter- 

 restrial magnetism, 150, 170, 172, 

 175. 



Gillies, Dr., on the snow line of South 

 America, 338. 



Gioja, crater of, 83. 



Oirard, composition and texture of 

 basalt, 253. 



tiiaisher, J unit*, on the Aurora Borealia 



of Oct. 24, 1847. See Translate r' 

 notes, 188, 195. 



Goldfuss, Professor, examination of 

 fossil specimens of the flying sau- 

 rians, 276. 



Goppert, on the conversion of a frag- 

 ment of amber-tree into o.-acK coal, 

 283, 284; cycauea?, 286; en the 

 amber-tree of the Baltic, 2S7. 



Gothe, 21, 27, 34. 



Greek philosophers, their use of thj 

 term Cosmos, 51, 52; hypotheses ou 

 aerolites, 109,110, 122, 123. 



Giimm, Jacob, graceful symbolism 

 attached to falling stars in the Li- 

 thuanian mythology, 99. 



Gulf Stream, its origin and course, 

 312, 313. 



Gumprecht, pyroxenic nepheline, 254. 



Guanaxuato, striking subterranean 

 noise at, 205. 



Hall, Sir James, his experiments on 

 mineral fusion, 262. 



Halley, comet, 23, 84, 8795; on the 

 meteor of 1686, 105, 122; on the 

 light of stars, 142; hypothesis ot 

 the earth being a hollow sphere, 1 63; 

 his bold conjecture that the Aurora 

 Borealis was a magnetic phenome- 

 non, 187188. 



Hansteen, on magnetic lines of decli- 

 nation in Northern Asia, 175 176. 



Hauseu, on the material contents of 

 the moon, 80. 



H edenstrom, on the so called ' Wood 

 Hills' of New Siberia, 284 



Hegel, quotation from his ' Philosophy 

 of History,' 59. 



Heine, discovery of crystals of feldspar, 

 in scorice, 269 



Hemmer, falling stars, 106. 



Hencke, planets discovered by. Seo 

 note by Translator, 74, 76. 



Henlrey, A., extract from his Outlines 

 of Structural and Physiological Bo- 

 tany. See notes by Translator, 350, 

 360. 



Hensius, on the variations of form, hi 

 the comet of 1744, 87. 



Herodotus, described Scythia as fre 

 from earthquakes, 199; Scythiau 

 saga of the sacred gold, which tell 

 burning from heaveu, 102. 



Herschel, Sir William, map of tac 



