INDEX. 419 



M. 



Magnetic Variations, 198 Magnetism of the Earth, 145, 392 



Malaria, essay upon, 300 Manufacture of Steel, 111 



Marlborough minerals, 353 McKenzie River, geology of, 4 



Meade, Dr. on a new locality of Zircon, 196 Medical Statistics, ISS 



Mercurj;^, combination of with metallic wires, 375 



Metal, a new one, 381 Metals, action of on inflammable gases, 168 



Meteorite of Tennessee, analysis of, 326 Milk, pure, 378 



Mine of Pasco, 43 Mineral Cement, 81 



Mineralogy, new treatise on, 416 



Mineral Waters, Piof. Daubeny's letter on, 407 



Mineralogical Journey, 351 Missouri Lead Mines, Map of, 416 



Mitchell, Prof on safety tubes, 345 Mitchell, Dr J. K. on sheet Caoutchouc, 399 



Mole, natural history of, 386 Molecules, active ones, 390 



Morphia, preservation of by alcohol, 384 



Morton, Dr. S. G. on the Fossils of New Jersey, 274 



Mushrooms, gas from, 174 Mutual instruction in Denmark, 394 



N. 



Native Iron crystallized, 140 Naval Sketches, 201 



Necrology, 157 New Fane Minerals, 353 



Nitric Acid, new test for, 176 Noggerath, Prof, on compression of air, 3S 



0. 



Ocean, luminous appearances in, 209 

 Organic Fossil remains in New Jersey, 274 

 Ossification of the Vitreous Humor, 186 



P. 



Pasco, silver mines of, 43 Patent claims, examination of, 193 



Pectic acid, 179 Peron, on the temperature of the sea, 295 



Peroxide of Hydrogen, 34 Peruvian antiquities, 116 



Philosophical Transactions of the Eoyal Society of London, 361 



Phosphor!, solar, 170 Physics, elements of, 414 



Plants, Prof Hitchcock's Catalogue of, 199 i 



influence of chemical solutions on, 388 



Plaster, on the setting of, 371 Plumbagine, a new vegetable substance, 385 



Potash, action of on organic materials, 382 Potassium, 182 



Potatoe flour in wheat, 173 Potatoes, preservation of, 188 



Prince Regent's Inlet, geology of, 16 



Printing, stereotype, the invention of, 161 



Prussic Acid, antidote to, 174 Pyrophorus, 176 



Q. 



Quebec Lit. and His. Society, transactions of, 412 



R. 



Refining, instructions for, 177 Religious toleration in Russia, 192 



Ren wick. Prof on the magnetism of the earth, 145 

 Review of the labors of Sir H. Davy, 217 



' Allen's Mechanics, 338 



"^ivero, M. de, sketch of the mines of Pasco, 43 



Rock specimens and petrifactions for sale, 401 Rocky mountains, geology of, 2 



Rosaic acid in urine, 385 Royal Society, transactions of, 361 



