INDEX. CX*V 



Herodotus, speaks of Scythia as free from earthquakes, p. 191 ; Note 180. Golden 



shower (supposed aerolites), Note 61. 



Herschel (Sir William), inscription on his monument at Upton, p. 78. Discovered 

 two of the satellites of Jupiter, p. 87. Diameter of comets, p. 93 ; Note 44. 

 "Star gauging," p. 140. Starless spaces, p. 142, 143; Note 117. On 

 the time required for the light of the remotest nebulae to reach the earth, 

 p. 144 ; Note 121. Comet of 1811, Note 46. 



. (Sir John), Magellanic clouds, p. 76 ; Note 32. Retrograde movement 



of satellites of Uranus, p. 90. Diameter of nebulous stars, p. 130. Saw, at 

 the Cape, ^ Argus suddenly increase in brightness, p. 144 ; Note 120. Trans- 

 lation from Schiller, Note 9. Volume and light of planetary nebulae, Note 95. 

 Describes a nebula resembling our sidereal system, p. 141 ; Note 112. Light 

 of single stars and clusters, p. 142; Note 114. Magnetic declination un- 

 changed in West Indies, p. 170 ; Note 150. Number of observations in the 

 present system of magnetic observations, noticed in an article on magnetism 

 in the Quarterly Review, p. 178 ; Note 165. 

 Hevelius, change of volume in the nucleus of a comet, p. 98. 

 Himalaya Mountains, their elevation, p. 10 ; Note 2. Their vegetation, p. 10 ; 

 Notes 3, 4. Elevation of snow-line on their northern and southern declivities, 

 p. 10, 11 ; Notes 5, 403. 

 Hippalos, see Monsoons. 

 Hodgson, snow-line in the Himalaya, Note 403. 



Hoff, estimation of the frequency of earthquakes at different seasons, Note 184. 

 Hoffmann (Friedrich), ditto, Note 184. Fissures of eruption m the Lipan Islands, 



Note 226. 



Hood, aurora, p. 186, 187. 

 Hooke, anticipations of the modern science of fossil geology, p. 260 ; Note 297. 



Undulations of the tails of comets, Note 99. 



Horary variations of the barometer, p. 307309 ; Note 381383. Undisturbed by 

 earthquakes, p. 193 ; Note 185. 



magnetic declination, p. 171, 172; Note 153. Undisturbed 



by earthquakes, p. 193. 



Ho-tsing (Chinese fire-springs), Notes 124, 195. 

 Howard, mean quantity of rain in London, Note 405. 

 Hugel (Carl von), snow-line on the Himalaya, Note 403. 

 Humboldt (Alexander von), titles of works referred to : 



Abhandlungen der Akad. der Wissensch. zu Berlin, Notes 219, 397. 

 Annales de Chimie et de Physique, Notes 5, 275, 403. 

 Annales des Sciences Naturelles, Note 2. 

 Annalen (Poggendorft), Notes 157, 227, 347, 384. 

 Ansichten der Natur, p. xx. (preface), Notes 422, 428. 

 Asie centrale, Notes 2, 5, 6, 124 (twice), 149, 182, 200, 210, 237, 249, 252, 

 285, 339, 340, 342, 353, 358, 359, 360, 363, 365, 366, 390, 393, 396, 401. 

 403, 407, 430, 440. 



Atlas g^ographique du Nouveau Continent, Notes 6, 241. 

 De Distributione Geographica Plantarum, Notes 394, 395. 

 Deutschen Vierteljahrs-Schrift, Note 315. 

 Essai sur la Geographic des Plantes, Notes, 6, 218, 384. 



g^ognostique sur le Gisement des Roches, Notes 218, 285. 



politique sur la Nouvelle Espagne, Notes 79, 187, 229. 



Examen critique de 1'Histoire de la Geographic, Notes 92, 128, 148, 151, 

 213, 336, 344, 370, 371, 372, 373, 374, 388. 440. 



