INDEX. 



Gordon, Mr. of Clunie, 26 



Cough, J. Esq. his essay on polygonal 

 numbers, containing demonstration 

 of a proposition respecting whole 

 numbers in general, l6l 



Gravitation, farther remarks on Profes- 

 sor Vince's answer, 114, 276, 208, 

 222— (See Vol. XIX. p. S04, 344 ) 



Guyton, M. his chemical examination 

 of a sparry iron ore, 357 



H. 



Haberle, M. 122 



Hall, Sir James, on volcanoes, 182 



Halley's hypothesis of meteors, not sa- 

 tisfactory, 86 



flardy, Mr. W. his curb for time- 

 pieces, affording a compensation for 

 the effects of heat and cold, described, 

 138 



Hassenfratz, M. 314 



Hatchett, Mr. 333 



Hauy, Mr 94, 98, 104, 171, 314 



Heat in animal bodies, cause of, 200 



Heidingcr, 134 



Helmont, Van, his experiment of the 

 production of earth in the growth of 

 the v/illow, cv,erthrown, 323 



Hemerobiuss calculation of the rate of 

 expansion of a supposed lunar atmos- 

 phere, 117 



Hernandez, 57 



llerriot, Mr. Thos. the first who de- 

 scribed the solaHum tuberosum, or 

 potato, 2 



Heyer's experiments on molybdenaj 

 121, 193 



Hielm's experiments on molybdena, 

 121, 133 



Hill wheat of India, 4 



Hoepfner, Mr. his analysis of the jade 

 of Swisserland, 105 



'lome, Everard, Esq. on the sttucture 

 Snd office of the stomachs of differ- 

 ent animals, with a vieXv to elucidate 

 the process of. converting animal and 

 -vegetable substances into chyle, 5, 



2 



Horizon, ariilicial, described, 279 



Huberle, M. 193 



Huel Boys, cr)tn])ositioii of the sulphu- 



ret from, and its crystals, 332 

 Humboldt and Bonpland on volcanic 



eruptions, 244 

 Hunter, on the human Stomach, 16 

 Hunter, Dr, his oil compost, 100 



Ignition by compressed air, 278 

 Ilsemann's experiments on molybdena, 



121, 195 

 Indigestion, 196 

 Iron spar, analysis of, 314, 357 

 Irwin, Mr. G. his experiment on soaj^ 



suds as a manui-2, 99 



Jade, analysis of, 104 



Jameson, Mr. his raineralogical que- 

 ries, 78, 158 



Jess6, Mr. Augustus De, his ingenious 

 contrivance for diaining the pond of 

 Citis, 89 



Jordan, river, analysis of its waters, 33 



Jura, Mount, remarks on a singular ar- 

 rangement of strata in the chain of, 

 64 



J urine, Professor, 94 



Kamel, 56 



Kater, Lieut. H. his new compensatioa 

 pendulum, 214 



Kerr, Mr. mistake of, £07 



Klaproth's experiments on molybdena, 

 121 — His analysis of the schist that 

 accompanies the Menelite near Paris, 

 157— Of bildstein, 171— Of speck- 

 stein, 174 — His chemical examina- 

 tion of the alum ore of Tolfa, and 

 the earthy aluminous schist of Frey-. 

 enwalde, 359 



Knight, T. A. Esq. 168 



Knox, 202 



Lambert, 



