INDEX. CXXxi 



Conjectured connection of aerolites with the passage of the earth through the 



zodiacal nebulous ring, Note 96. 

 Oltmanns, observed, with the Author, the march of the declination needle at short 



intervals at Berlin, Note 166. 



Organic life, general view, p. 338357 ; Notes 420432. 



Ovid, description of the volcanic elevation of the hill of Methone, p. 230 ; Note 230. 

 Oviedo calls the gulf weed "praderias de yerva," p. 301.1 

 Owen, on the great fossil Myl6don, p. 267. On the Dinornis, p. 378. 



Palaeogeography, p. 274278. 



Palaeontology, p. 28, 259-268 ; Notes 297316. 



Palaeophytology, p. 28, 268274 ; Notes 317332. 



Palaeozoology. (See Palaeontology.) 



Palmer, observed the great November shower of aerolites in North America, in 



1833, p. 114. Recalled the occurrence of a similar phenomenon in November 



1799, p. 115. 



Paramos, p. 13, 327, 332. 

 Parallax, of fixed stars, p. 79, 144; Note 34. 

 Parry, auroras, and their association with magnetic disturbances, p. 185187. 



Barometic observations at Port Bowen, p. 309. Rare occurrence of thunder 



in high northern latitudes, p. 336. Saw an aurora in clear daylight, Note 173. 

 Patricius (Bishop of Pertusa in the third century), his correct views respecting 



the origin of hot springs, p. 211 ; Note 209 

 Peltier, on different sources of atmospheric electricity, p. 333 ; Notes 409, 412, 



415. Attributes to slate-grey clouds resinous electricity ; and to white, rose, 



and orange-coloured clouds, vitreous electricity, p. 334. 

 Pencati (Count Marsari), calcareous beds partially inflected by the contact of 



syenitic granite in the Tyrol, p. 250. 

 Pendulum experiments, p. 26, 157160; Notes 131136. Made for the purpose 



of determining the ellipticity or figure of the earth, p. 156, 157 ; Note 131. 



Influence of local attraction on, affording indications respecting rocks and 



strata otherwise inaccessible, p. 26, 158; Notes 132, 133, and Editor's Note 



appended to Note 132. Those of Bessel, establish the identity of the action of 



gravitation on very various bodies, including fragments of aerolites, p. 51, 52. 

 Pentland, elevation of the Sorata and Illimani, Note 2. Skulls from the highlands 



ofTitiaca, Note 434. 

 Permian system, Note 314. 

 La Perouse, first experiments on the variations of the magnetic force made on his 



expedition, Note 159. 



Pertz, notice of a large meteoric stone or aerolite, p. 109 ; Note 62. 

 Peters (Dr.), on the velocity with which stones are ejected from Etna, Note 69. 

 Phillips, experiments on the temperature of mines at depths, Note 138. 

 Philosophy, abuse of speculative, p. 6366. " Philosophy of nature," p. 5, 15. 



Pythagorean, p. 52, 53, 56, 57, 70. Ionic, p. 53, 65, 74, 124, 176. 

 Phosphorescence of the sea, p. 189, 303. Of Venus, p. 188. 

 Physical science, its limits, p. 33. Its intellectual value and its influence on the 



prosperity of nations, p. 3639. 



description of the universe (cosmography), p. xix. and p. 40, 41. 



Pindar, oldest recorded eruption of Etna, Note 213. 



Plana, influence of local gravitation on the direction of the plumb-line (and that 



on determinations of latitude) in Lombardy, Note 133. 



