410 



ANNUAL OF SCIENTIFIC DISCOVERY. 



Railroad, Pacific, route for, 383 



Railway and dry dock at Philadel- 

 phia, 35 

 " improvements, 58 

 Railways, improved sleepers for, 56 

 Rain, a source of nitrogen in vegeta- 

 tion, 250 

 " observations on the fall of, 378 

 RANKINE, MR., 179, 184 

 Refraction of sound, 179 

 Regulator, hydraulic, for steam en- 

 gines, 53 

 Remedy for the asthma, 386 

 REMSEN AND HUTTON, AIESSRS., 55 

 Reptiles of the Devonian formation, 310 

 Repudiation of American discover- 

 ies by English geographers, 396 

 Researches, Asiatic, 395 

 Researches in New Zealand, 282 

 Resources of the valley of the Ama- 

 zon, 397 

 REYNOLDS, Ma , 78 

 RIDDLE, PROF. J . L., 153 

 Rifle barrel, improved, 66 

 " Minie, 64 

 Rivers, mean temperature of, above 

 that of the atmosphere, cause of 

 the excess, 

 ROGERS, PROF. H. D., 

 Romer Shoals, beacon on, 

 Rome, discoveries in the Catacombs 



of, 



Ro?se, Lord, nebulae discoveries of, 

 Rosin oil, improvements in the manu- 

 facture of, 

 " value of, 

 Russian measurement of the arc of 



the meridjan, 

 RUSSEL, J. SCOTT, 

 SABINE, COL. 

 Safety valve, improved, 

 Sal-ammoniac, method of getting 



of in analysis. 

 Salt Lake of Utah, 



" Region of Minnesota, 

 Sand, showers of in China, 

 Saw, circular, run without an arbor, 



SCHONBEIN, M., 



SECCHI, M., 



Sewing machines. 



u " Dr. Avery's, 



" Howe's, 



' Magnin's 



" Titeman's, 

 SEYMOUR, MR. H. C.. 

 Shawls, improvements in weaving 



and printing, 

 SHEPARD, PROF. C. U., 

 Sheep, Geology of, 

 Ship building, novelties in, 

 Ships, location of compasses in iron, 

 Shooting stars of August, 1852, 

 Shot, new method of making, 

 Silver, preparation of pure from the 



chloride, 



" separation of from other met- 

 als, 



Silvering glass, composition for, 

 Slates, improved, 



179 



314 

 36 



388 

 362 



98 

 213 



368 

 49 



121 

 54 



261 

 284 

 283 

 278 

 90 

 258 

 173 

 81 

 81 

 81 

 81 

 82 

 40 



83 

 299 

 308 



40 

 133 

 361 



77 



210 



205 

 L>:: i 

 112 



Sleep, state of the mind during, 335 



Sleepers, improved cast iron for rail- 

 ways, 56 

 SLOCUM AND SALES, MESSRS., 73 

 SMITH, DR. J. LAWRENCE, 

 Snake plant of South America. 

 Soda, detection of by polarized light, 196 

 Solar agency in producing chemical 



change, 158 



" radiations, influence of on 



plants, 319 



" spots, remarks on. 

 Sound, refraction of, 179 



Species, analogy between the dura- 

 tion of, and the life of an 

 individual, 332 



" origin of, 330 



Spheroidal state of bodies, 201 



Spining, improvements in, 79 



Spontaneous combustion, human, 255 

 Spoons, patent, 



Stability of the earth's axis, 277 



Statistics of Great Britain, commer- 

 cial, 67 

 Stamps and seals, means of taking 



impressions of, HI 



Stass, Prof., on the detection of the 



organic alkaloids, 238 



Steamboat propellers, 42 



Steam, diaphragm generator, 50 



t: effects of on timber, 107 



Steam-engines, hydraulic regulator 



for, 53 



" " improved governor for, 53 

 Steamer " Light of Heaven," 



for the Pasha of Egypt, 

 Steel, Indian, production of, 204 



STOKES, PROF., 146 



" researches on light, 148 

 Stones, machine for picking up, 91 



Strychnine, adulteration of beer with. 237 

 Styptic, new, 216 



Sugar, beet-root, production of in 



Europe, 95 



" " of in Ire- 



land, 94 



" improvements in the manu- 

 facture of, 95 

 Suggestion, influence of in modify- 

 ing muscular movements inde- 

 pendent of volition, 336 

 Sulphurets decomposable by Avater, 211 

 Sulphuric acid, formation of from 



sulphurous acid and oxygen, 235 



Sun, Arago on the physical constitu- 

 tion of, 335 

 " heat of, 173 

 " motion of numerous small 



bodies around, 364 



t; new eye-piece for, 142 



" relation between its spots and 



the magnetic needle, 134 



" true place of in the universe, 140 



S Avail ow tree, the, 351 



Tactics, new military, 69 



TALBOT, M. Fox., 157 



Tallow tree of China, 322 



Telegraph, extension and use of the 



magnetic, 126 



