404 



INDEX 



PAGE 



Meat, preservation of, 295 

 Mechanical constructions, requisites for 



improvements in, 38 



Melodeons, improvements in, 109 



Meteorite, new, in Tennessee, 332 



Metals, combinations of, 244 



" experiments on the strength of, 176 



" reduction, by hydrogen, 274 



" to prevent oxidation of, 244 



Microscope, curious use of, 198 



Military implements, improved, 83 



Mill, grist, Allen's, ' 102 



Mills, new, grinding, 102 



Minerals, labels for, 



Mines, ventilation of, 



Mississippi, does it run up hill ? 179 



Modelling, Powers's system of, 109 



Moon, photographic view of, 208 



" relative age of the surface of, 307 



" rotation of, 189 



Moonlight, effects of, on vegetation, 345 



Mountains of Western America, 308 



Muscles, composition of in the animal 



system, 276 



Museum, new scriptural, 14 



Mushrooms and ozone, 



Music, registering, 108 



" sheet, new method of binding, 108 



Nature, numbers in, 222 



NASMYTH, JAMES, 187 



Naval architecture, improvements in, 39 



Nebulse, laws governing, 382 



special forms of, 187 

 NEWTON'S rings, permanent reproduction 



of, 197 

 NEVVBEKRY, Dr , on the geology of Ore- 

 gon and California, 326 

 Ngami Lake, 888 

 Nitrogen, how furnished to vegetation, 294 

 North Carolina, Permian and Triassic 



systems of, 312 



Notation, musical, 108 



Numbers in nature, 222 



Observatory, Dudley, 7 

 Oil, castor, products of, 236 

 " for painting, 236 

 " from the Avocado pear tree, 235 

 " rancid, to make sweet, 235 

 Oils, treating bituminous mineral pro- 

 ducts for the extraction of, 237 

 " coal, on the manufacture of, 331 

 " improvements in the preparation, 238 

 " vulcanised, 236 

 OLMSTEAD, Prof., 141 

 Oregon and California, geology of, 326 

 Ornament, rustic, for al'oom^ 348 

 Oxymel process in photography, 207 

 Oysters, propagation of, 365 

 Oxalic acid, used for germination of seeds, 351 

 Ozone, and its relations to mushrooms, 285 

 " iodide of potassium as a re-agent 

 for, 287 

 Ozone, production of by electrolysis, 287 

 " Prof. Eogers's observations on, 284 



Pacific, great ocean current of the, 217 

 Packing, improved, for slide valves of 



marine engines, 48 



Painting, oil'ibr, 236 



Painting with both hands, 212 



PAGE 



Paints, mixing wheat flour with, 122 



Pan, sugar, improved, 115 



Paper and cloth, improvements in 



bleaching, 241 



" from bark of the cotton stalk, 88 

 " improvements in the manufac- 

 ture of, 88 

 " pulp, bleaching, 242 

 " pulp from fibres of plants, im- 

 provement in preparing, 89 

 Pear tree, avocado, oil from the, 235 

 Pennsylvania new red sandstone, fossils 



from, 335 



PERRY'S valve motion, 62 



Petroleum and coal, oil from, 236 



Pharmaceutical Association, American, 7 

 Photographs, artificial light for taking, 206 

 causes of fading of, 203 



collodion, transferring, 206 

 gutta percha, 207 



mode of mounting, 203 



on the permanence of, 202 

 Photography, application of, to the copy- 

 ing of ancient MSS. 205 

 improvements in, 204 



" oxymel process in, 207 



Phyllotaxis, law of, 346 



Piano, Driggs's improved, 106 



Pigeon, carrier, extraordinary flight -of, 370 

 Pictures, perception of colors in, 213 



" photographic, 202 



Planet, original asteroid, 371 



Planets discovered in 1856, 371 



Planter, corn, Thompson's, 129 



Planting, Licbig's improved process 



for, 269 



Plants, Blanc's process for extracting 



the bres of, 116 



" distribution of, 29 



flowering, development of the 



embryo of, 851 



influence of light and water on 



the germination of, 850 



" transmutation of species in, 351 



Plough, new, 



130 



proposed improvement in the 



construction of, 131 



" self-holding, 131 



" subsoil, 131 



Portfolio, for binding sheet music, 108 



Portraits, stereoscopic, motion in, 199 



Power, horse, Hunt's, 131 



" motive, on the origin and trans- 

 formation of, 



POWERS, HIRAM, 109 



Press, lithographic, improved, 125 



Printing, calico, egg albumen in, 238 



Products, natural, artificial formation of, 23 

 Pulp, paper, bleaching, 242 



" straw, bleaching, 242 



Pump, Holly's elliptic rotary and steam 



engine, 67 



" steam safety, Ball's, 66 



Eace, unity of, 

 llailway bars, improved, 



" chair, iron block, 

 Eailroad car springs, 

 Eailway improvements, 



" night signals, 

 Eailroad management, facts in, 

 Eails, railroad, improved, 



369 

 70 

 56 

 54 

 54 

 58 

 53 

 56 



