INDEX. 



Gouilly, 281 



Granite, globular, of Corfiea, ftructureof, 

 167 



Gregor, Rev. W. 139 



Gren, 48 -83. — His method of obtaining 

 benzoic acid, 87 



GreflVt, 285 



Greville, Rt. Hon. C. 4.— Letter to him 

 on bafalt, 1x3—165 



Gridiron pendulums, apparatus for exa- 

 mining, 80 



Guiton, 142 



Haas, Mr. 201 



Hales, 290 



Hall, Sir James, 60—113 



Harduinus, 146 



Hatchett, C. Efq. his analytical experi- 

 ments ;md obfervations on iac, 45—82 

 —93.— His obfervations on the change 

 of the proximate principles of vegetables 

 into bitumen, 181. — His analyfis of 

 magnetical pyrites, 265 



Hauy, 118 



Heat, its fpeedy action on bodies depends 

 on the>r fo^id dimenfions and figure, 

 70 



Hencke!, 273 



Herrings, Dutch method of catching and 

 curing, 213 — 248 



Hieroglyphic.^, ancient Egyptian, fuppofed 

 to rciate to aftronomy, 4 



Hinckley, J. tfq. on the Dutch method 

 of ca ching and curing herrings, 223— 

 248 



Hippaic^us, 146 



H- ffmann, 141 — 246 



Homberg, 141 



Hoppn-r, Mr. 222 



Horizontal moon, on its enlarged appear- 

 ance, ic.8— 139«— Remarks on Mr. 

 Walker's experiments on, 156. — Opi- 

 nion* refpecting, 276 



— — - — — needle, for aeroftatic experi- 

 ments, 278 



Huddart, Jofeph, Efq» on the. enhrsccj 

 appearance of the moon at low altitudes, 

 137 



Hutton, Dr. 167 — 277 



Hovgens's circular pendulum, 75. — Re- 

 marks on, 81 — 158 



Hydro-fulphuret of cerium, 11 



Hygrometers for aeroftatic experiments, 

 a-79 



I. 



Images, focal, on the meafurc of, 108— * 

 205 



Ingenhouz, M. 23 



Inftrument for drawing in perfpectivc, in- 

 ventor of the, 4 



for making correct drawings 



from nature, 1 1 1 



■ for meafuring the abforption of 



gafes, 12 



■' a new one recommended, 21 



Inftruments, a method for nautical fur- 



veying without, 103 

 ■ — for aeroftatic experiments, 



278 

 Iridium, a new metal obtained from pla- 



tina, 26 



K. 



Karften, 265 



Keir, Mr. 115 — 176 



Kepler, 3 — 92 — 145 



Kerr, Mr- 45 — 100 



Kind, M. his experiments on the pro- 

 duction of artificial camphor, 131 



Kirby, Mr. 226 



Kircher, 153 



Kirwan, 16 — 20 — 1 15 — 265 



Knight, F. A. Efq. on the motion of the 

 fap in trees, 289 



L. 



Lac, analytical experiments and obferva- 

 tions on, 45 — 93 



Lagrang?, Bouillon, on milk and the lac- 

 tic acid, 141 — 257 



U 



