INDEX, 



309 



Magnetic variation rs. sun-spots . 159 

 IMagneto-electric niacliine .... 158 

 Malarial fevers, cause of ... . 30,; 

 Maininal, new, from China . . . S'Si 

 Man, pre-liistorio . . 11, 358, 3G0, 3(>3 

 Marriages, consanguineous . . . 29S 



Marsupials, brain of 27(5 



Mastodon, discovery of in Cohoes, 



N. Y 326 



Matcli, friction, burning of . . . 207 

 Meat, good and bad, appearances 



of 204 



Meat, preservation of DO 



Mechanic arts, progress of ... 4, 5 

 Mercury, conducting power of . . 154 

 Metals, positive state of .... 217 

 " precipitation of by magne- 

 sium 206 



Meteoric shower of Nov., 1866 . .348 

 Metorites, physical history of 10, 347 



Meteors, luminous 345 



Meteorological perturbations . . 353 



Metrical system 74 



Microscope illuminators . . 147, 140 



Microscopiclife 318 



Micro-spectroscope 1:.'0 



Jlineral waters, medicinal action of 300 

 Mollusca, classification of ... . .316 



Monotreniata, brain of 276 



Mont Cenis raili-oad 54 



" " tunnel 32 



Moon, structure of 11 



Mortality of Paris 307 



Mortar, new 41 



Mortars, ancient, composition of . 200 



Motion in all things 169 



" transformed into heat . . 153 



Mount Hood, ascent of 265 



Mud volcanoes 'jl\ti 



Muscular action, tlieory of . . . . 28() 



" irritability, nature of . . 284 



'* power, source of . . .8, 288 



Myograph 308 



Nail machine 45 



Nebula in Orion, spectrum of 227, 228 

 Nebula;, nature of . . . . . . . 343 



Needle gun 105 



Nephila plumipes 317 



Nervous impressions, velocity of . 278 

 Nitrate of potash from nitrate of 



soda 214 



Nitrogen; is it an element ? . . . 187 

 Nitroglycerine 97, 204 



Objectives, telescopic, slieatlied . . 149 

 Odors of flowers, metliod of obtain- 

 ing 100 



Oils, vegetable, oxidation of . . . 208 



Optical delusion 127 



Optical experiment 125 



Ores, machinery for working ... 47 



Origin of species 309,312 



Origins, difficulty of tracing . . .311 

 Oxalic acid, production of . . . . 214 

 Oxygen, advantageous method of 



preparing 195 



Oxvgen, obtained from atmospheric 



air 190 



Ozone 209 



Pachnollte 217 



Palliser gun- m 



I'ancreatjcjnice, chemical action of 108 



I'aper tVom corn fibre 95 



" from wood 89 



Paraffin, uses of §5 



Parke:-ine gg 



Peat as fuel 46 



Peroxiiie of hydrogen 209 



Petroleum as fuel 06 



" origin of 260 



Phenic acid 202, 216 



Philology, importance of to eth- 

 nology ... 362 



Phonautograph 182 



Phosphorus, separation of from 



metals 77 



Photographic image, invisible . . 129 

 " process . . . 143, 144 



" statistics 141 



" washing apparatus . 136 



Phofograpliing cannon balls . . . 140 



Photographs, coloring of ... . 134 



" destruction of . . . 135 



" unalterable .... 136 



Photography and the Kaleidoscope, 138 



" applied to Natural 



History 139 



" in colors . . . 131, 132 



" improvements in . . 143 



" submarine 145 



" subterranean .... 140 



" upon silk 146 



Photo-lithography 137 



Photo-micograpliy 146 



Photo-sculpture 143 



Pliysical forces, correlation of . 6, 170 



Physiology, progress of 274 



Pigment, new green 215 



Plants, climbing 328 



" useful, number of ... . 335 



Pneumatic railway 57 



Pneumato-electric organ .... 159 



Polariscope, imjiroved 124 



Polynesians, migrations of . . . 324 

 Potash, in plants, parts where found 329 



Prairies, origin of 255 



Preservation of wood 72 



Prism, polarizing, new 124 



Processes for preserving meat . . 90 



Pterodactyle 323 



Pyrometer, new 154 



Quadruped birds 327 



Kadish, giant, of Java 334 



Pain, fall of 184 



Ked . Sea, analysis of water of . . 195 

 Reptiles, new fossil . . 325, 326, 327 



Kheometer, diflerential 1.54 



Khigolene 304 



Kock salt of Louisiana 251 



Rubidium 215 



Ruggles' dynamometer 42 



" shaft-coupling 44 



Safe, fire-proof 83 



!?afety lamp, new 81 



Salmonida', vitality of 321 



Halt springs of Idaho and Nevada . 252 

 8andlbod-plaut 332 



