448 



INDEX. 



Morphia, preparation of, 189 — effects of 



acetate of, 198, 325 

 Morvenstrap, rock in, 260 

 Mummies, manufacture of, 126 

 Murray's Materia Medica, 314 

 Murrel, John, on cookery, 144 

 Mushrooms, chemical composition of, 



437 

 Mutis, on fermentation, 320 

 Myrrh, two species of, 209 



Natural History, 198, 422 



Naval construction, primary elements of, 



232 

 Needles, vibration of, 16 

 Nelson, Lieut., his geological survey of 



the island of Guernsey, 359 

 Nemazoaires, of M. Gaillon, 207 

 Nepenthes and Sarracennia, 287 ,< 

 Newman, Mr., his new artificial horizon, 



171,402 

 Niagara, falls of, 433 

 Nicholson, Mr., on the red snow of (he 



Arctic regions, 206 

 Nicotia, experiments on, 417 

 Niebuhr, supposition of, 127 

 Night-telegraph, new, described, 393 

 Nitrogen, chloride and iodide of, 175 

 Northumberland, Duke of, 249 

 Nubians, supposed to be the descendants 



of the Egyptians, 128 



Observations, mean results of, 91 



Oil-gas, experiments on, 410 



Oils, proportion of, in plants, 192 



Old Park Iron Works, near Shifnall,249 



Olives, new and hardy kinds of, 427 



Opium-eaters of Turkey, 118 



Oranges, green, chemical analysis of, 193 



Ordnance of ships of war, 219 



Orfila, M., experiments by, 198 



Organic matters, action of potassa on, 414 



Oscillatoriae described, 284 



Osmium, oxide of, mode of obtaining, 

 105 



Oxalic acid, different substances produ- 

 cing, 415 



Oxidation of phosphorus, observations 

 on, 83 



Oxide of manganese, new, 421 



Palladium, malleable, mode of obtaining, 



104 

 Paris, Dr., extractsfrom his work, 306, 319 

 Paris Pharmacopoeia, 309 

 Pecora, their characteristics, 345 

 Pectic acid, mode of obtaining, 189 

 Pereira, M., on the iodide of potassium, 



411 

 Peruvian bark, properties of, 308 

 Pett, Phincas, large ship built by, 223 



Pfaff, M., on the phosphorescence of the 



sea, 203 

 Pharmacy, writers on, 320 

 Phenicin, or purple indigo, 267 

 Phillips, Mr., on a new oxide of manga- 

 nese, 421 

 Phosphorus, oxidation of, 83 — in vacuo, 

 176 ! 



Phrenology, theory of, 203 

 Physich, Dr., 429 



Physiology, vegetable, curious phenome- 

 non in, 425 

 Pigeons, wild, in North America, 203 

 Pilchards, on attracting shoals of, 133 

 Piperine, properties of, 313 

 Plague, observations on, 120 — supposed 



causes of, 122 — treatment of, 124 

 Plamaria, M., 417 



Plant, dangerous, growing among water- 

 cresses, 427 

 Plants, mode of cultivating in walls, for 

 ornaments, 53 — catalogue of, 60 — list 

 of alpine ones, 68 — proportion of oil 

 in, 192 — drying of, 208 — germinative 

 powers of the seeds of, 211 — influence 

 of chemical solutions on, 212 — struc- 

 ture and functions of, 279 — direction 

 of the roots and stems of, 422 

 Plaster, solidification of, 167 

 Plateau, M., on the impressions produced 



by light on the eye, 395 

 Platina, method of rendering it malleable, 

 97 — property of, 173 — researches re 

 specting, 196 



ores, analysis of, 184 



Platinum, spongy, its application to 



Eudiometry, 354 

 Plumbagine, a new vegetable substance, 



192 

 Poisoning by strychnia, 431 

 Poisons, vegeto-alkaline, and the neu- 

 tralization of their power, 431 

 Poisson, M., his memoir on the Mean 



Results of Observations, 91 

 Poiteau, M., on the roots and stems of 



plants, 422 

 Polype, fresh water, described, 283 

 Pontet, M., on chloride of lime, 410 

 Porcelain, cement for, 163 

 Port-holes, contrivance of, 223 

 Portland, petrified tree in the island of, 



435 

 Posselt and Reimann, their experiments 



on tobacco, 418 

 Potash, chromate of, its adulteration, 182 

 Potassa, its action on organic matters, 

 414 



ferro-prussiate of, 411 



Potassium, iodide of, its adulteration, 411 

 Potatoe-root, nature and character of, 423 

 Potatoes, peculiar cultivation of, 425 



