INDEX. 



429 



PAOE 



Plants, fossil, of recent formations. :;."> 

 " how nourished, 260, 2U5 



irritability of, 370 



new genera of American, .'J >7 



presence ot arsenic in, 2trJ 



" structure of, Faraday on, 376 



k ' winding, motions of, 370 



Plough, ! awkes's steam, 86 



prairie draining, 94 



" Waters's steam, 92 



Plough-holder, Whitney's, 94 



Ploughing and reaping machines, 



91 



Poisoning, accidental, precautions 



against, 102 



Population of the globe, 3S2 



Pressure, influence ot on affinity, 199 

 " " electric con- 

 duction, 117 

 Printing, increasing the durability 



of plates for, 138 



press, universal, 97 



Projectiles, for rifled cannon, 192 



Propellers, screw, experiments with, 29 



Quince essence, how prepared, 



273 



Railroad car-axles, 33 



Railway superstructures, 39 



timber, preservation of, 48 



Rain-fall, decrease in western Europe, 15 

 Raking and binding machinery, 94 



Ram, iron steam. 69 



Ramparts, lake and pond, 324 



Raspberries, essence of, 273 



Retraction, atmospheric, 155 



Reindeer, tossil, of Aew York, 32d 



Reproduction, new fact in, 4 :>8 



Reptile, new fossil, hadrosaurus, 335 

 Reptiles, Owen's IICAV classification of, 10 

 Rhizopod type of animal life, 403 



Rocks, conductivity of heat, 172 



metamorphism of, 277 



ROGERS, Prof. ^V. H., 340 



Rosin, decoloration of, 230 



Sand, improved moulding, 82 



Sandstones, Conn. River Valley, bird- 

 tracks in, 324 

 Sandstones, " " " fossils 



of, 355 



Sandstones, " " posi- 



tion of, 322 



Schonbein on ozone, 199 



Science, progress of in the U. S., 4 



Schists, bituminous, origin of, 321 



' talcose (so called), of Ver- 

 mont, etc. 321 

 Sea, deep, explorations, 285 

 ; ' effects of lightning at, 119 

 fs sinking of bodies in, 287 

 Sensation, researches on, 380 

 Sewerage of London, 35 

 Shoe, improved for horses. 96 

 Shooting star, supposed constitution 



of, 352 



Shot, resistance of iron plates to, 71 

 wind of 193 



Silk and cotton, means of distin- 

 guishing, 247 

 Silurian, sub, ossils, 325 

 Silver in bells, 81 

 Skate, electric apparatus of the, 128 



PAGE 



Smith, Dr. J. Laurence, 319 



Smoke, burning in furnaces, 45 



of gas, consumption of, 97 



Snell, Prof, on vibiations of water, l!-3 

 Soil, action ot vegetation on, 205 



Soundings, deep sea, 61, 285 



Species, extinction of, 332 



Spitzbergen, geology of, 290 



Spleen, changes in the blood-cells of, 380 

 Spontaneous generation, 391 



Star, shooting, examination of the 



supposed matter of, 362 



Stars, new map and catalogues of, 



" observations on lost, 13 



Starch, conversion into sugar by the 



action of light, 159 



Starch, improvement in the manufac- 

 ture of, 112 

 Static induction, 125 

 Steam, superheated, use of, 44 

 Steam-ploughing, 



Stetfm-ram, 69 



Steamships, duty of, 

 Steam-tillage, prospects of, 

 Steamship Great Eastern, 

 Steamer, Winans's, 26 



Steel, cast, Gardner's new mode of 



treating, 223 



Steel, different modes of manufac- 

 turing, 208 

 Steel, experiments on the strength of, 113 

 " improvements in the manutac- 

 ture ot, 221 

 Steel, manufacture by the Uchatius 



process, 206 



Stereoscope, experiments illustrating 



the principle of, 156 



Strychnia, detection of, 276 



Sugar, production ot from woody 



fibre, 245 



Sulphuric acid, electrolysis of, 136 



Sulphurous acid, new inode of pre- 

 paring, 225 

 Sun, eclipse 9f, Sept. 7th, 1858, 420 

 " magnetic action of, 140 

 " photographic pictures of, 4 

 " spots on, 419 

 Surgery, application of electricity to, ISO 

 Survey", ordnance of Great Britain, 36 



Talc, new industrial application of, 103 

 Tanning, improved method of, 104 



Tartaric acid, artificial production of, 241 

 Tea and cotfee, influence ot on the sys- 

 tem, 268 

 Telegraph, application to military 



purposes, 140 



Temperature of the ocean, 176 



Thermograph, Hall's, 176 



Therapeutic uses of electricity, 131 



Thompson, Prof. J., on the measure- 

 ment of running water, 

 Thread, new process tor gilding, 

 Tide, upon Lake Michigan, 194 



Tillage, steam, prospects of, 82 



Timber, railway, preservation of, 48 



Time and photography, 162 



" geological, conditions of, 2^4 



Tin. in California, 324 



j i.-Mie, i.ervous and muscular condi-> 

 tiuus of, 129 



