INDEX. 



Sulphuret of lime, the beft teft for atmo- 



fpheric air, 42 

 Sulzer, 235 

 Sun, fpontaneous inflammation from its 



adlion, 219 

 Symner, 71 



T. 

 Table, of the going of three chronome- 

 ters, 68 

 ■ _ of the relative prefTures of the at- 



mofphere, temperatures and expanfibi- 



lity of fleam, 263 

 ■■' of fines and tangents, 62 



- comparative^ of the temperature of 



the feaand atmofphere, 131 

 ■ very extenfive, of fquares and cubes, 



63 — Eafy method of completing, 150 

 Tangents, tables of fines and, 62 

 Telegraph, formed of the human figure, 



164 — ^Mechanical additions to, 167 

 Temperature of the atmofphere and fea, 



comparative table of, 131 

 Tennant, Smithfon, Efq. difcovery of tv/o 



new metals by, 220 

 Thompfon, Dr. 45, 139, 145, 198 — On 



the oxides of lead, 280 

 Thouvenel, 77 



Timepieces, of an early date, 36 

 Toilet, Mr. 278 

 Torrefaftion of vegetables incrsafes their 



tendency to fpontaneous inflammation, 



238 

 Townley, Mr. 235 

 Tronfmutation of metals, antiquity of a 



belief in the, 28 

 Triangles, fpheroidal, nev7 problems in, 



TromfdorfF, 127 



Trough, galvanic, improvement in, 79 



T. S. T on, the difappearance of a mix- 

 ture of oxigen and hidrogen over water, 

 301 



Turnery of an early date, 36 

 V. 



Van Marum, 177 — On Rltter's galvanic 

 experiments, 21Z 



Vapour, a mephhlc probably emitted by 

 fome animals, 60 



Varnifti, eafy method of preparing copal, 

 142 



Vauquelin, on a new earthy phofphate 

 found in the bories of animals, but 

 not in thofe of men, 85 — On the yoilc 

 of woolj and on the cleanfing and bleach* 

 ing of wool, 90 — His analyfis of arfe- 

 niate of copper, 195, 221, 248, 288 



Velocity of a body projefted from the moon 

 to the earth, methods of inveftigating, 

 22 



Vegetables, dry, attrafl: water, 243 



Virgil, 108 



Voita, 172, 177, 203 



Vofmaer, Mr. 5S', 103 



U. 



I 



Urme, its aclion in fcouring wool, 95 



W. 

 Wales, Mr. 66 

 Walker, Mr. A. his horfe-mill, 37 



Mr. E. on the methods of ob- 



ferving the longitude at fea, and on the- 

 accuracy of the mean refult from a num- 

 ber of chronometers, 65 



Water, its decompofition known to the 

 ancients, 28 — Its adlion on the yolk of 

 wool, 90— Does not cleanfe wool alone, 

 94 — Apparatus for filtering, 126 — Dies 

 not dlffolve air, 149 — Heated in a boiler 

 of ftoiie, fadl refpedling, 169 — Aftion 

 of alcohol on, 201 — Is repelled by tffcn- 

 tial oil?, 203 — Its adlion on dry ve- 

 getables, 243 — Is attradled by dry at- 

 mofpheric air, 245 — ^^Bcil method of im- 

 pregnating it with a gas, 300 — Slow ab« 

 forption of a mixture of oxigen and hi- 

 drogen over, 301 



Watfon, Dr. 289, 291 



Watt, 72, 262 



Webfler, Mr. 268 



Wefton, Mr. I. 169 



Wilkinfon, C. Efq. on the means of fim- 



plyfying and improving the galvanic ap» 



c paratus, 



