GENERAL INDEX. 



423 



Men, hair of different races of, 356 



Mercury, improvement in distilling, 77 

 MERRYMAN, E. H., 47 



Metal castings, cleansing, 93 



" new, aridium, 172 



Metalliferous deposits, new, 

 Metals in sea-water, 177 



" tenacity of, 97 



Meteorites, falling of, over a limited 

 area of the earth's sur- 

 face, 234 

 " new American 2S6 

 Meteor, brilliant, 370 

 of Aug. 19, 1347, 372 

 " of Sept. 30, 369 

 Meteors, periodic, in 1349, 371 

 in 1350, 371 

 " various, 373 

 Meter, water, 61 

 Mexican antiquities, 

 Mexico, tides of the Gulf of, 

 Microscope, improvement in, 144 

 Mildew in paper and parchment, causes 



and prevention of, 



Milk, presence of fluorine in, 13: 



" secretion of, 354 



Mineral blue color employed by the an- 

 cients, 213 

 " paint, new, 73 

 Mineralogy of emery, 



Minerals, artificial production of, 167 



" highly hydrated, condensa- 

 tion of volume in, 224 

 " metallic, silver in, and the 



processes for its extraction, 175 

 Mines, coal, hydraulic pressure in, 31 



" pump for, 63 



Mississippi River, physics of, 

 Missouri River, rate of fall of, 257 



MITCHELL, W., 370, 373 



Mode of arresting inflammation, 354 



" of preserving plants and flowers, 327 

 " of stereotyping, 71 



Mollusks, American fresh-water, 

 MORELLET, M., 



MORTON, DR. S. G., a58 



Motion, proper, of * Virginia, change 



in, 374 



Motive, nova, 19 



power, application of electro- 

 magnetism as, 103,110 

 Motor powers, experiments on, 351 

 MOULTRIE. PROF. JAMES, 

 MUNCH. M., 125 

 MURCHISON, SIR R. I., 259 

 MURDOCH, JAMES, 62 

 MURRAY, SIR JAMES, 



Muscular fibre, fibrine of, 194 



Musket-lock, new, 42, 43 



Nail, increase of, in man, 355 



Names, new, for the American Conti- 

 nent, 



Nashville, suspension bridge at, 

 NASMYTH, JAMES, 103 



MR., 89, 144, 233 



Navigation, progress of, 

 Nebula, new, 



Nebulae, the, 376 



Needle-gun, new. 

 NEIL, DR., 357 



Neptune, observations on, as a fixed 



star, 366 



" second satellite of, 365 



Nervous currents, rapidity of, 351 



Nest-building fishes, 335 



Nettles, stinging, formic acid in, 200 



New Brunswick, asphaltum from, 307 



Newfoundland, subsidence of, 253 



New Grenada, gold in, 293 



New Jersey, manufacture of zinc paints 



* . >*~^ 



in, 1/3 



" origin of the green-sand of, 262 

 " oxide of cerium in, 293 



Newport, ruin at, 

 Newspapers, machine for folding, 

 New York, sulphuret of nickel in, 293 



New Zealand, fossil remains of the birds 



of, 313 



Nsami, Lake, 

 Niagara. Falls of, 



Nicaragua, ancient monuments in, 337 

 Nickel, sulphuret of, in New York, 293 

 XIEPCE. M., 143, 150 



Nile, climate of the valley of, 



" sources of, 



Nineveh, new discoveries at, 

 Nitrates, new test for, 219 



Nitric acid, effect of, on bones and flesh, 195 

 " " purification of oil of vitriol 



from, 219 



Nitrogen, influence of, upon vegetation, 207 

 of the air, relations of, to res- 

 piration and voice, 207 

 Nizam, diamond in the possession of, 309 

 Northwest, drift deposits of, 



" passage, existence of, 267 



NORTON, PROF. W. A., 132 



Nourishment of plants, part performed 



by manures in, 



Nova motive, 19 



Nutritive properties of the apple, 193 



Occultations of stars in 1550, 373 



Occurrence of arsenic in iron pyrites, 179 

 " of exogenous wood in the 



lias formation, 315 



" of formic acid in stinging 



nettles, 200 



" of palms in the coal forma- 



tion, 315 



Ocean, depth, currents, and tempera- 

 ture of, 264 

 different chemical conditions of 

 the water of, at the surface 

 and at the bottom, 22-3 

 Oil, cod-liver, action of, and test for, 213 

 " of vitriol, purification of, from nitric 



acid, 219 



OLMSTED, MR., 163 



PROF., 115, 236 



Opium, determination of the quality of, 218 



O'PvEGAN, MR., 14 



Oregon, absence of the coal formation in, 306 



Organ, euharmonic, 153 



ORMEROD, G. W., 252 



Orograph. 65 



OSANN, M., 247 

 Oscillating engine, improved, 



Oscillation locomotive engine, 15 



OWEN, PROF., 316 



Oxidation, protection of iron from, 96 



