INDEX. 



H. B. letter from, communicating curi- 

 ous observations on the wind, by Roger 

 Asham, 171 



Reaumur on turquoises, 184 



Richardson, Rev. Wm. on the origin of 

 Basalt, and arguments against its vol- 

 eanic origin, 27 7 



Roberts, Rev. Peter, 160 — Letter from, 

 relative to a pampliet entitled ' The 

 Art of Universal Correspondence,' 239 



Robins, Mr. 88 



Robinson, Mr. 273 



Rodwell, Mr. 362 



Roxburgh, Dr. W. on the culture, pro- 

 perties, and comparative strength of 

 hemp and other vegetable fibres, the 

 growth of the East Indies, 223 



Rumford, Count, observation on his 

 theory of the cause of the water pits 

 of the Glaciers of Chamouny, 385 



Russel, Mr. W. his proposals for pub- 

 lishing by subscription two engravings 

 of the moon in piano, by the late John 

 Russel, Esq. R.A. 71 



Rutile, the first species of menac, de- 

 scribed, 1,29 



Rutilite, the second species of menac, 

 described, 132 



S. 



St. Fond, see Fond 

 Sage, M. on turquoise stones, 182 

 Sap of trees, circulation of, 60 

 Scientific news — for January, 79; for 

 February, 156; for March, 289; for 

 April, 318 

 Scopoli's report of the use of lichen in 



Carniola as food for horses, 211 



Sea water, component parts of, 387— 



May be rendered fit for washing 



clothes without the aid of sope, ibid. 



Seeberg observatory, 239 



Shetland Isles, on the small whales found 



in the seas of, 310 

 Short's mirrors for reHecting telescopes,44 

 Silex, electrical experiments with, 105 

 Sinclair, Sir John, extract from his 

 " Collection of Paper on Athletic 

 Exercises," on the breeding and feed- 

 ing of game-cocks, 217 



Skrimshire, Mr. Wm. jun. on the ab- 

 sorption of electric light by different 

 bodies, and some of their habitudes 

 with respect to elecricity, 101 



Smith, Capt. his report on the Dutch 

 herring-fishery on the coast of Shet- 

 land, 1-19 



Smith, Dr. 88 



Smithson, J. Esq. his account of a dis- 

 covery of native minium, 127 



Saodgrass, Mr. account of his method 

 and advantage of heating apartments 

 and manufactories by steam, 326 



Soife, poor, improvement of, 360 



Sow-thistle, extraordinary nutriment af- 

 forded by it, 372 



Spalanzani, M. 281 



Specula for reflecting telescopes, SO, 84 



Stars' distance, 38G 



Stpam, used as a mean of heatia^ apart- 

 ments and manufactories, 325 



Stcinhauer, Mr. H. his account of a 

 new kind of halo, 287 



Strontites, electrical experiments with, 

 107 



Strange, Mr. on volcanic productions, 

 278 



Sun plant, of the East Indies, its utility 

 in the manufacture of cordage, and 

 mode of preparatiotj, 228 



Sun's diameter, observations on, 26 

 T. 



Tatum, Mr. jun. his account of a fact, 

 not hitherto observed, that the galvanic 

 power heats water while decomposing 

 it in part, 81 



Telescopes, reflecting, observations on 

 the metallic compositions for the spe- 

 cula of, 30, 84 



— — , refracting, proposed im- 

 provement of, 93 



Tenant, Mr. on soils, 365 



Thickness, Mr. his explanation of the 

 " Speaking Figure", applied to the 

 " Invisible Girl", 119 



Thomson, Dr. T. on the inflammable 

 gas formed during the distillation of 

 peat, 241 



Thompson's Chemistry, 368 



Tozzettj, 



