Index. 379 
Geographical distribution of British plants, 23. 
Glass as a non-conductor, early notice of, 369. 
Hamilton, Sir William, Bart., Professor of Logic and Metaphysics, 
his remarks on Dr Morton’s tables on the size of the brain, 330. 
Hauer, Franz Von, his account of the geological survey of Great 
Britain, 227. 
Hogg, John, M.A., F.R.S., on the geography and geology of the 
Peninsula of Mount Sinai, and the adjacent countries, 193. 
Incombustible, man, account of, by M. Boutigny, 104. 
Infusorial deposits in Oregon, 361, 
Jordan, river, its infusoria enumerated, 188. 
Kemp, Alexander, Teacher of Practical Chemistry, &c., on the puri- 
fication of oil of vitriol from nitric acid, and on the absence of 
iron in hydrochloric acid, prepared by Professor Gregory’s 
process, 354. 
Lava stream, motion of, observed on the side of Mount Vesuvius, 
27th April 1849, by A. Milward, Esq., 46. 
Lead ore, quantity of, raised, and lead smelted, in the United King- 
dom, in the year 1848, 185. 
Light, its extinction in the atmosphere, 357. 
Lyell, Sir Charles, his observations on the supposed depression and 
elevation of the land near Stockholm, 350. 
Maclaren, Charles, F.R.S.E., on a deposit of shells near Borrow- 
stounness, 311. 
Mammals and birds, their low state of development in Australia and 
New Zealand, 362. 
Miller, J. F., Esq., F.R.A.S., his synopsis of meteorological obser- 
vations made at Whitehaven in the year 1848, 55, 
Migratory birds of Australia, 363. 
- Morton, George Samuel, M.D., his observations on the size of the 
brain in various races and families of man, 262. 
Murchison, Sir R. I., on the superficial detritus of the Alps, as 
compared with that of Northern Europe, 256. 
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