434 INDEX. 



Botany, difcoveries in, page 62. 



■■ intelligence concerning, 109, 1 11, 336. 



Botifas for cooling 'water, manufacture of, 374. 



Braam, V--n, extracts from his journal, 85. 



Broken, account of the fpectre of the, 23Z. 



Brugnatellis experiments to render paper indeftruclible by fire, S9. 



BureLhard, Dr. calculation of the orbit of the comet lately difco- 



vered, ioO. 

 Burja, Profcffor, on the folar and lunar period of 6co years, 32. 

 Butter, a kind of, produced fiom a tree in Africa, 238. 



Canada, account of the jumping moufe of? 28J. 

 Cantaros for cooling water, manufacture of, 574. 

 Carbonic acid gas, a cure effected by, 4 10. 

 Cart-zvrigbt, Mr. patent fteatn engine invented by, T. 

 Cavallo's dpparttus for transferring gas, a defcription of, 305. 

 Cbaptal on the effects produced by mordants in dyeing red, 274. 

 • on the epidermis, and on tanning, aoo. j 



on the fixity of certain yellow colours, 430. 



China, method employed to prepare foy in, 342. 

 Chrome, on the new metal lb called, 2*9, 361. 

 Cobalt, difcovery of a vein of, in Cornwall, in. 

 Coin, propofal for improving, »20, 4,1. 



Cold produced by compreffed air, 426. 



Collier, Mr. Jofeph, his obfervations on iron and fteel, 46. 



Comets, remarks, &c. on, 60, 104, 105, 106. 



Conferva jugalis, a curious circumftance reflecting the, 307. 



Copenhagen, prize queftions by the fociety of, 323. 



Cryjlals, theory of the ftructure of, 39, 153, 287, 376. 



Cwvier on the foffil bones of quadrupeds, 413. 



Darcefs analyfis of the earth of which alcarrazas, &c. are made, 



•373- . . . r e 



Davies's (Major-General) account of the jumping moufe of Ca- 

 nada, 285. 



DcfaigKts's apparatus for Impregnating iuater, defcription of, 77. 



Difeafes, curable by metallic tractors, 251. 



Dioptrics, experiments in, 22'. 



Diblie, or the Dark Lake, fome account of, 239. 



Difcoveries andimprenn men's, view of Ion le late ones, 59, 208, 305, 1 2 I. 



Dcdd's propofal for a tunnel under the Thames irom Gravefend ta 

 Tilbury, 223. 



Dotttys or headmen in Africa, nature of their office, 241. 



Dutch emba j to China, fome particulars of the, X5. 

 g-Turkey or Adrianople red, the procefs for, 4. 



a vie , pfocefs lor, ^6. 



- a new wood proper lor, 92. 



a blue, yellow, or green, procefs for, 126. 



of) the erects of mordants in, 274. 



yellow colours, information concerning, 430. 



omctcr, de/cripi-ioo and ule of the, 399. 



EertbqualAty 



