SL 



INDEX. 415 



Infusoria, Ehienberg's observations on, 201 



Innes, Mr George, celestial phenomena, 194, 380— the mean tempe- 

 rature of Aberdeen, 153 

 Iodine, observations on its acidification, 72 

 Lightning conducting rods, observations on, 154, 304 386 

 Lyell, Mr, his account of Werner, 253 



Mantell, Gideon, on the geological age of reptiles, 181 



on ripple marks, 240 



Mastodon^ formerly distributed on the American continent, 352 

 Matthew, P., his experiments on the influence of lightning-conductors 



on vegetation, 386 

 Meywar district, geology of, 32 

 Mineralogy, notices in, on chiastolite, magnetism of platina, olizoner 



zircon, datolite, Jameson's Mineralogy, tremolite, 389, 390 

 Mitchell, Professor E., on winds, 167, 288 

 Murray, Dr Peter, account of arbusculites argentea, 147 



Newcastle Natural History Society's Transactions, vol. i. part 2., 

 noticed, 405 



Oil of Roses, analysis of, 303 



Ornithological Dictionary of Montague, noticed, 402 



Parmelia esculenta, analysis of, by Gobel, 303 



Patents granted in England, 409 ; in Scotland, 199, 411 



Platina, its magnetic properties, notice of, 388 



Playfair's account of Hutton and his Theory of the Earth, 257 



Plymouth Institution, its Transactions, noticed, 406 



Razor-strap, vegetable, notice of, 394 

 Reptiles, their geological age considered, 181 

 Ripple marks in sandstone, account of, 240 

 Rocks, the influence of, on native vegetables, 56 

 Roses, oil of, analyzed by Gobel, 303 



Spring of salt in county of Durham, notice of, 389 



Stanley, Owen, account of a wooden suspension-dial used in the Alps 



and Pyrenees, 281 

 Stewart, Colonel, his account of the weather of Isle of Man, 150 

 Stevenson, Alan, his remarks on vast blocks of granite in Finland, 393 



