INDEX. 



Downs, dangers encountered in travelling 

 over, and the means of avoiding tliem, 

 319 



Duehefne, 128 



Du Hamel, on reproduced buds, 349.— 

 On the efFefts of madder in ftaining the 

 bones of animals, 407, 413 



Drappier, M. his analyfis of the piritc 

 found in France, 213 



Dropfy, relieved by the ufe of gafeous ox- 

 ide of axote, I a 



Eandi, M. Vaflali, 369, 370 



Earnfliaw, Mr. explanation of his time 

 piece, 419. 



Earthenware of a bad quality, danger of 

 ufing, 361 



Eclipfe, folar, on the 30th of January, 

 1805, 370 



Economy at fea, exemplified in the per- 

 formance of Mr. Whitley Bofwell's pa- 

 tent fliip, with his improvements in 

 tackle, 174 



Effervefcences, faline, upon walls, 373. 



Elaftic fluids, their tendency to mutual 

 diffufion, 278 



Eleftrical hypothefis of fairy rings, diffi- 

 culties of, 3 



Eleftricity, fadts and fpeculatlons in, 87 



Emilius Leopold Auguftus, reigning duke 

 of Saxe Gotha, his attachment to, and 

 patronage of fcience, 276 



Inamel of the teeth does not contain flu- 

 oric acid, as aflerted by Morichini, 214 



•• Enquirer, an," correiled in fome parti- 

 culars wherein he appears to have been 

 mifinformed refpe£ling the fifheries on 

 the north of Scotland, 169. — His re- 

 ply, 200.— Further remarks, 417 



Entomological obfervations, 371 



Equations, fumming up, 371 



Erneft II. late duke of Saxe-Gotha, his 

 bequeft to his Obfervatory, 276 



EftaWiftiments for natural philofophy in 

 the Ukraine, 175 



.■4.. J. o'-"-*»' ; -w- >V-:: 



Ether will i'lfCohe more fulphur than al- 

 cohol, 68 



; fulphurated, is a good medicine, and 



may be ufed as a left for lead in wine, 



Explofions in chemical combinations, at- 

 tributed to nitrogen, 234 



Expanfion of water in cooling below 41 

 degrees explained, 189 



F. 



Fabricius, profeflbr, on fafcin^tlon, jco 



Facquer, M. on the foul air of oil cif- 

 terns, 238 



Fairy rings, i, 93, 415 



Falconet's ftatue of Peter the Great, 129 



Falling bodies, experiments on,. 187 



Fafcination, fuppofed power of, in the 

 rattle-fnake, 300 



Favre, M. on the folution of fulphur In 

 alcohol and the various kinds of ether, 

 68 



Fire-balls, atmofpheric, may be eleflric 

 fparks, 90 



Fixed ftars have probably a progreflive as 

 well as rotatory motion, 60 



Flinders, M. Efq. on the differences in 

 the magnetic needle at fea, 100 



Flint and fteel, combuftion caufed by their 

 coUifion, 90 



Fluids, elaftic, have a tendency to difl^u- 

 fion through each other, 278 



Fourcroy, M. 85. — On the phenomejia 

 ohferved in, and the refuks obtained 

 from, auimal matter a£>6d upon by ni- 

 tric acid, 240. — On falivary concre- 

 tions, 375.— On bilious calculi, 376 



Fourcroy and Vauquelin's analyfis of Gu- 

 ano, 323 



France, furvey of, 188 



Fungi not the caufe of fairy rings, 3 



Fungi of the vale of Pifa, 371 



Fungus of the afh tree, recommended as 

 a match for miners, 195 



Galvanic- 



