INDEX. 



Dobson, Dr. on atmospheres of high 

 temperature, 146 



Drill horse-hoe for turnips, or weed- 

 harrow, 281, 284 



Drummoud, Mr. 'John, 178 



Duhamel, see Tillet. 



Duiitze, Arnold, his experiments on 

 animals, to ascertain the degree of 

 heat they were capable of bearing, 

 144 



Dupont, M. de Nemours, on instinct, 

 299 



Durosier, M. on the preparation of ace- 

 tic aether, 220 



Dyes, violet purple, 188 



Dykes, Mr. J. D B. 283 



E. 



Eclipse of the sun, total, observed in 

 America, 365 



Eel, electrical, of Surinam, 310 



Electrical experiments, 11 



Electricity, application of its powers to 

 discharge cannon, 232 



Ellis, Mr. H. his relation of a remark- 

 able fact respecting heat, 143 



Emeritus on looming or horizontal re- 

 fraction, 153 



Erman, M. his memoir on two new 

 classes of galvanic conductors, 233, 

 316 



Estremadura, silver mines of, 129 



Faro Islands, charts and description of, 



lately published, 231 

 Fernandez on the solution of muriate of 



silver, 188 

 Field, Mr. G. account of his stove for 



heating rooms, or drying different 



articles, 263 

 Figeac, Mr. J. J. C. his description of 



the mode of making threshing-floors 



in the commune of Valbonnais, 363 

 Filtering stones, 190 

 Fir-trees, remarks on pruning, 157 

 Flint, sculptured, a curious antique, 



195 



Flint of recent formation, 230 



Fordyce, Dv. his experiments on animal 

 heat, eompar d with that of the at- 

 mosphere. 145, 215 . 



Fossils penetrable by water, 193 



Fossil remains of lost animals, 310 



Foster, Mr. Matthew; 283 



Fourcroy on gallic acid, 69— On the 

 degrees of oxigenation, 268 



Franklin, Dr. on the effects of heat on 

 animals, 144 



Fuel, economy in, derived from a newly 

 constructed boiler, 5, 312 



Funguses, 308 . 



G. 



Gaff, Thos. Esq. 283 



Gall, on, 340 



Gallic acid, facts toward a history of, 

 58 



Galvanism, 149,233,316,362 



Gases supposed to have an equal capa- 

 city for heat, 37-1 



Gay-Lussac, on the absorption of gases 

 by water, 275 



Gehlen, M. on the preparation of ace- 

 tic aether, 219— See 229 



Geometry, Elements of, by Lacroix, 375 



Gerhard, on fossils penetrable by water, 



193 

 Germon, M. on the management of 

 vines and wines in Champagne, 353 



Gillet-Laumont, Mr.— See Laumont. 



Gioanetti, M. on the action of astrin- 

 Tr*- gents on solutions of iron, 58 



Grignon's refined cast iron, 186 



Growth of trees in the Botanic Garden 

 at Calcutta, 110 



Guadalcanal, platina found in the silver 

 mines of, 128 



Guy ton de Morveau, M. his experi- 

 ments on the adhesion of bodies in 

 fluids, 172 — On filtering stones, and 

 the method of determining the specific 

 gravity of substances with large pores, 

 190- — His report on a sculptured head 

 of flint, 195— See Berthollet and 

 Guyton. 



Gy, M. And. de, on the structure of 

 b ^ Mount 



