414 



INDEX. 



Lithium, distribution of, 

 Locomotives, on common roads, 



" wood and coal burn- 



ing, economy of, 

 Lunar radiations, 



Machines, electro-motive, 



Madder, artificial production of the 



color of, 

 Magnetic currents, new theory of, 



disturbances, 

 " phenomena, curious, 

 Magnets, most advantageous form 



of, 



Malaria, causes and prevention of, 



238, 

 Mammalia, cerebral classification of, 



" of North America, 



Man,antiquity proved from language, 



the remains of, 

 " co-existence of, with extinct 



animals, 

 " fossil, 

 " lowest race of, 

 Manganese, new compounds of, 

 Marmots, winter sleep of, 

 Mausoleum, discovery of the ruins 



of, 



Medicine and chemistry, 

 Mental labor, exhaustion of, 

 Metals, new, 



sacrificial, 



semi, characteristics of, 

 Metallic ores, origin of, 

 Mctamorphism. researches on, 253, 

 Meteors, August ring of, 

 Meteor, great, of July, I860, 

 Meteors, new facts and theories re- 

 specting, 



Meteorite, interesting Indian, 

 Meteorites, nature and origin of, 

 Microscopic photography, 

 Military architecture of the middle 



ages, 



matters, notes on, 

 Mineral deposit, curious, 



formations, curious, 

 " produce of Great Britain, 

 Minerals, combustible, 

 Mist and hail, production of, 

 Moon and sun, relative brightness 



of, 



" hole in, 

 " magnetic disturbances caused 



by, 



Musical acoustics, 

 Musky secretions of animals, 



130 



28 



27 



158 



109 



230 

 110 

 110 

 110 



111 



240 

 340 

 32G 

 20? 

 250 



300 

 304 

 14 

 180 

 331 



403 

 172 

 218 

 137 

 118 

 173 

 275 

 27G 

 375 

 377 



373 

 377 

 370 

 145 



28 

 87 

 304 

 309 

 308 

 204 

 155 



381 



388 



110 

 102 

 330 



Nyctoscope, the. 



93 



Naphtha, notes on the history of, 283 

 Nature-printing, Dresser's system Of, 07 

 Nebulae in Orion, observations on, 389 

 New red sandstone of the United 



States, new fossils from, 292 



Nickel and iron, properties of a mix- 

 ture of, 43 

 Nicotine in tobacco, yearly produc- 

 tion of, 313 

 separation of from the 



smoke of tobacco, 211 



Night telegraphic signals, 128 



Nitrogen and iron, 170 



" and nitrous acid, research- 

 es on, 183 

 Nomenclature of printed stuffs, 52 



Obituary, for 1801, 406 



Occhiombra, the, 129 



Ocean, animal life in, at great depths, 344 



" bottom, nature of, 344 



" depth of. 207 



" remarkable depression in 



the, 283 



Oil, " mineral," or rock," 283 



Organic substances, artificial manu- 

 facture of, 171 

 " substances, influence of 



ozone on, 189 



Ornithorhynchus of Australia, 

 Oxalic acid, manufacture of, 245 



Oxygen, preparation of on a large 



scale, 

 Ozone and nitrous acid, 



" atmospheric, 186 



" influence of on organic sub- 

 stances, 189 

 " use of as a bleaching agent, 184 



Papier mache, manufacture of, 52 



Parrott's shot, 89 

 Patterson's improved gun lock, 

 Pearls, artificial, 

 Pebbles, flattened, origin of, 



Perspiration, experiments on, 215 

 Petrels, home of the, 



Petroleum, notes on the history of, 283 

 " production of in the 



United States, 



Phonautography, 102 



Phosphoric acid in igneous rocks, 226 



" " in the atmosphere, 307 



Phosphorus, manufacture of, 210 

 Photographic printing, 



Photographs in enamel, 146 

 Photographs of lines in the spectrum, 141 

 Photography applied to anatomy, 



" new applications of, 144 



Picric acid, curious fact relative to, 212 



Planks, to check warping of, 315 



Planet, Lescarbault's, hypothetical, 3S9 



Planets, new, 368 



" " nomenclature of, 370 



Plants, effects of gases on, 314 



" removal of insects from, 315 

 Plates for iron-clad vessels, 7, 72 



Platinum, fusion of, 175 



Plesiosaurus from New Zealand, 309 



Ploughs, steam, 66 



Pluviometer, new, 165 



Pneumatic dispatch, the, 55 

 Polar expeditions, recent, 393, 3!4 



Porous bodies, chemical action of, 245 

 Potichromany, 



Power, hydraulic, 168 



Prairies, origin of the Western, 289 



Printed stuffs, nomenclature of, 52 



Projectiles, direction of, 358 

 " elongated for cannon, 



" movements in vacua, 93 

 " resistance of iron plates 



to, 7, 81 



Pyrometer, new, 151 



Quebec group of rocks, 275 



Railroad cars, new method of warm- 

 ing, 28 

 Railroad mechanism, progress of, 24 



