400 Index. 



%i 



Iodides, new test for, by Dr D. S. Price, 298. 



Latham, Dr Robert Gordon, on general and special apophthegms, 39. 



Log Books, improved forms of, 171. 



Lunar surface, and its relation to that of the earth, by James 

 Nasmyth, engineer, 267. 



Maury, Lieut. M. F., on the probable relation between magnetism 

 and the circulation of the atmosphere, especially the trade 

 winds, 271. 



Meteorological observations made at the observatory, Whitehaven, by 

 J. F. Miller, F.R.S.E., 234. 



Microscopes, observations on, 48 — Microscopic examination of sound- 

 ings, 359. 



Micas of America, their optical properties, 55. 



Mollusca, shells of, their value for the purpose of distinguishing 

 species and higher groups, by Professor C. B. Adams, 259. 



Nest-building fishes, account of, 196. 



NuUipores and corallines, their chemical composition, by Damour, 85. 



Orangite, notice of, 193. 



Patents, list of, granted for Scotland from 17th March to 19th June 

 1851, 209 — From 22d June to 22d September 1851, 396. 



Parasites, their relations to other animals, 88. 



Petrie, William, on the relation between the changes of tem- 

 perature and volume of gases, 120 — Remarks on the spontane- 

 ous re-heating of air, 125. 



Polynesia, explanation of the rapid decrease of its native population, 

 198. 



Rain, great fall of, in the lake districts in the north of England, 189. 



Rankine, W. J. M., on the re-heating of jets of air, and the relation 

 between temperature and compression, 128. 



Rocks are not formed by infusoria, 393. 



Salt and salt-lakes, the origin of, 130- 



Sedgwick, Professor, on the geological structure of the frontier chain 

 of Scotland, 250. 



Studer, Professor, on the slow elevation and subsidence of the land in 

 Switzerland, 357. 



Smyth, Professor, on the total eclipse of the sun, on July 28, 1851. 

 — On the nature and source of the sun's light and heat, 182. 



Suggestions to astronomers for the observation of the total eclipse of 

 the sun, on July 28, 1851, 154. 



Teas of commerce, observations on, by R. WarringtOB^J£;^'S'> 240. 



Trade winds, account of, 271. 



Trilobites of Bohemia, 193. 



Ventilation, on, by Professor Hosking, 302j 



Waves, on their action, 191. 



Well-water, the changes it undergoes, 191. _ 



Wind, remarks on its direction at sea, 170 — Direction of wind in 

 relation to the age of the moon, 190. 



