IN D E X. 



Rawlins, Mr. R. e96 



Rees, Dr. 35 



Kesiu, common, analysis of, 72-YeIlow, 

 of New Holland, analysis of, iJlO 



Reith, Mr. A. 341 



Ritter's experiment on the decomposi- 

 tion of water, 184 



Richter, M. 260 



Roberts, Mr. S. his description of an ap- 

 paratus used at Sheffield for cleansing 

 chimneys, 349 



Rockets, motion of, 93 



Romans, their forcing-houses, 147— 

 Fruits cultivated by, 151 



Rondelet, M. 13 



Roots, causes which influence the di- 

 rection of the growth of,. 370 — Ma- 

 chine for washing, 336 



Ross, Mr. J. D. 251, L8 1 — His machine 

 for separating iron filings from their 

 mixture with other metals, 127 



Roxburgh, Dr. on various drugs of the 

 EastJndies, 276 



Sailing, directions for, 159 



Salisbujy, Mr. W. his method of pack- 

 ing plants and trees intended for ex- 

 portation, so as to preserve their vege- 

 tative powers for many months, 339 



Salts, neutral, remarks on the analysis 

 . of, 260 



Sash-windows on a new construction, 

 129 



Saussure, M. on the properties of va- 

 pour, 169 



Scientific Institution, lectures at, 239 



Scientific news, 78, 157, 239 



Sennebier, M. 380 



Sewell, Mr. 179 



Ships, means of preserving from decay, 

 287 



Shooting stars, 131, 285 



Silex sublimed in iron- works, 74 



Silver precipitated by copper, 318 



Simpson, Rev. J. his account of the 

 Biirrknot apple, 76 



Sinclair, Sir J. 208 



Singer, Mr. G. 239 



Smithson, J. Esq. on the compositioa 

 of zeolite, 133 — Addition to his ac- 

 count of native minium, printed in a 

 former volume, 137 



Sound, transmission of, through solids 

 and air, 103 — Production of in va- 

 pour, 169 — Produced by a musical 

 string, place of, 321 



Spire ou a new construction, 241 



Spring-Grove codling, description of, 77 



Stansfcld, Mr. 113 



Stars, shooting, peculiar appearances of, 

 131,285 



Stems of plants, their inclination to- 

 wards the light, 144 



Stodart, Mr. 294 



Stone, composition for defending against 

 the injuries of the atmosphere, 11 



Stones, meteoric, description of those 

 which fell last year in France, 158 



Strauss, M. 293 



Straw hats, British, 273 



Struve, Professor, on the compositioa 

 of zeolite, 136 



Stomach, direct communication b&= 

 tween it and the blood, 173, 299 



Stucco for preserving stone, 10 



Sugar, crystallised, analysis of, 72 



Sulphuric acid, see Acid 



Sun, illumination of the, 192 



Surrey Institution, lectures at, 239 



Swallows, migration of, 213 



Sylvester, Mr. communication from, re- 

 lative to the migration of swallows, 

 213 



Tachometer,^ an instrumenfc for ascer.* 

 taining the velocities of machinery, 

 described, 121 



Tannin, artificial, 351 



Taylor, Dr. C. 276 



Thenard,M. 2S4— 5ee Gay-Lussac 



Thomson, Captain, extract from his log- 

 book, 213 



Thomson, 



