408 INDEX. 
Geology, agenda to promote the knowledge of, 24, 135. 217: 
Glafs, to folder, 311. 
Goods, machine for loading and unloading, 392. 
Gum arabic, on the real origin of, 239. 
Guyton on the combultion of the diamond, 55, 174+ s 
Guyton on the converfion of iron into ftecl by means of the dia- 
mond, 8 
Guyton on the gravity of tungften, 308. 
Heat, inquiry into the weight afcribed to, 162. 
Hemmer’s obfervations on animal electricity, 1, 140. 
Herholdt’s new theory of refpiration, 300. 
Herfchel on the fun and fixed flars, 114, 222. 
Hyelm on the art of hardening copper, 27. 
Holyoke’s method of preparing carbonat of pot-afh, 36, 
Horfe chefinut, a fubltitute for eatracium ching, 310. 
Horfes, account of the Spanifh American wi/d,, 330s 
Howard's improved air-furnace, defcription of, 190. 
Hydra, ingenious explanation of the allegory concerning, 151. 
Indigo refin, Brugnatelli on, 97- 
dak, an improved writing, 98. To prepare, 157, 353- =. 
Tron, Muthet on the manufadture of, &c. 49,97, 124,200,256, 366. 
, converfion of into fteel by means of the diamond, &c. 89, 201, 
—, fingular oxydation of, 208. 
——, experiments on chromat of, 305. 
dron ores, Mufhet on the affaying of, 236. 
Fuch, curious notices by Dr., 207, 208. 
Klaproth on fugar from beet-roots, 96. 
Kortum on the aGtionof the fluor aeid, 29. 
Jake Palius, defcription of the, 77- 
Lamanon on-the fog of 1783,. 80. 
Lapis fungifer, on the nature and. properties of, 279. 
Learned Societies, information refpeting, 955 197>.296).402. 
Le Beck on the pearl fifhery at Ceylon, 325. 
Levant red, onthe Grecian method of dyeing, 325. 
Lime, on different forts of, ufed in agriculture, 209. 
Linneus, monument to, 309. 
Linfeed ail, to feparate the mucilage from, 62. 
Liver, a difeafed, cured. by vitabair, 94. 
Lofft, Capel, efq.. on. fiery. meteors, 38. 
Longitude, Nugent’s method of difcovering:the,; 378. 
Magnefia, to be avoided.as'a manure, 210. 
Magnetic-poles, a new theory refpeCting the, 378. 
Mann on the gradual changes in temperature and foil in differeng 
climates, 18. 
Mann onthe flux and reflux of the atmofphere, 105. . 
Manganefe, to prove the prefence of, in'vegetables, 98, . 
Medical 
