Index. 407 



Hedge plants of India, observations on, by Dr Oleghorn, 316. 

 Hitchcock, Professor, his observations on the effects of river action 



on wearing down strata, and the raised sea margins of New 



England 348. 

 Hogg, John, F.R.S., on the geography and geology of the peninsula 



of Mount Sinai and adjacent countries, 33-256. 

 Hopkins, Mr, on the dispersion of granite blocks from Ben Cruachan, 



334 — On Isothermal Lines, 345 — On the formation of 



clouds, 345. 

 Horner, Leonard, F.R.S., his observations on the discovery, by 



Professor Lepsius, of sculptured marks on rocks in the Nile 



Valley in Nubia, 126. 

 Hunt, Mr, on the chemical action of solar radiation, 329. 

 Iron, a new and ready process for the quantitative determination of, 



by Dr F. Penny, 328. 

 Ivory, to render flexible, 187 — decayed to restore, 186 — as an 



article of commerce, 186. 

 Keith, Johnston, Esq., F.R.S.E., on the geographical distribution of 



health and disease, 363. 

 Kirkwood, Daniel, on a new analogy in the periods of rotation of 



the primary planets, discovered by him, 165 — Mr Drach's 



Letter on this analogy, 400. 

 Lake ** Ngami" of South America, account of, 150, 

 Lakes of North America, the rise and fall of their water considered, 



172. 

 Lamprey eels, observations on, by Prof. Agassiz, 242. 

 Maclaren, C, Esq., F.R.S.E., on moraines in Scotland, 333. 

 Macpherson, Mr, on the bursting of water pipes, 326. 

 Manganese, its frequency on the water of streams, lakes, &c., 174. 

 Mantell, G., Dr, on the extinct birds of New Zealand, 385 — On the 



Iguanodon, 371. 

 Marine telescope, described by John Adie, F.R.S.E., 117. 

 Martins, M., on the climate of France, 341. 

 Miller, H., Esq., on the boulder clay of Ross and Cromarty, 332 — On 



the peculiarities of structure in the more ancient Ganoids, 368. 

 Meteorological observations at the Observatory of Whitehaven, Cum- 

 berland, in the year 1849, by John Fletcher Miller, F.R.S., 53. 

 Mollusca, testaceous, their distribution in Jamaica, 180. 

 Murchison, Sir R. I., on the discovery of carboniferous fossils in the 



crystalline chain of the Forez, 308. 

 Nasmyth, James, Esq., C.E., his improvements in forging iron, 327 



— On the physiognomy of the moon, 363. 

 Niagara, Falls of, considered, 174. 

 Nicol, James, Professor, on the geology of the southern extremity 



of Canty re, 385. 

 Owen, Professor, on British Eocene serpents, and the serpent of the 



Bible, 239 — Observations on three skulls of Naloo Africans, 



389. 



