INDEX. 425 



Earthquakes, account of, page to6. 



Earth worms, to deltroy or drive away, 169. 



Economical process, account of Mr. Bentham's patent for, 148. 



Elephants, lbme curious circumttances refpedting, 83. 



Embajfy of the Dutch to China, fome particulars of the, 85. 



Emerald of Peru, analyfis of, by Vauquelin, 204. 



Enamel, black, to till up engraved filver with, 405. 



Encaujlic painting, the procefs : its antiquity and advantages, 23, 141! 



, the procefs, according to Requeno, 406. 



Englijh, Mr. John George, on river. and canal boats, 393. 

 Epidermis, chemical obfervations on the, 409. 

 Equilibrium, principles of, applied to boats, 393. 



Fabbroni, Ch. Sig. Giov. on encauftic painting, 23, 141. 



•, his account of the violet dye produced from the leaves of 



fuccotrine aloes, 56. 

 Fernandez, D. report on a new wood proper for dyeing, 92. 

 Floating bodies, the principles of equilibrium, and the liability of, 



applied to river and canal boats, 393. 

 Force of men and animals, an instrument to meafure the, 399. 

 Fo'/d bones, extradt of a memoir upon, 413. 

 French National Inflitute, prizes propofed by the, 95, 326. 



■ proceedings of the, 100,218,328. 



French weights and weafures, explanation of, 24$. 

 Furnace for iOnverdng iron i'lto jleel, defcription of a, 55. 



Galvanifm, experiments on, 319. 



, prize queltion on, 42,. 



Gardening, intelligence concerning, 109. 

 Geqffrqy, De, on 'he orang outang, 337. 

 Germination, etiedts of oxygen upon, 309. 

 Green dye, Aftracan procefs for a, 127. 



Hamburgh, prize propofed by the fociety of, 102. 

 Hanbemanns teft for adulterated wine, 31. 

 Hiuy's theory of cryftallifation, 35, 46, 287, 376. 

 Herpbel, Dr. opinions of, respecting the fun, 59. 



■ difcoveries by, 60, 104. 



Hjelm, P. J. method for purifying lead for affaying, xr. 

 Hochbeimcr's propofal for a new hygrometer, 367. 

 Hooke, Dr. defcription of his telegraph, 3 1 2. 

 Humbolt on atmofpheric air, 419. 



experiments on germination by, 309. 



Hydrojlatics, interesting experiments in, 61. 

 Hygrometer, propofal for a new, 367. 



Imperial Academy, prize questions by the, 424. 



Ink, to prepare a fympathetic, 1 JK. 



Infec7s, to deltroy or drive away, 169. 



Iron andjlecl, obfervations on, 46. 



Irritability of the annual fibre, remarks on the, 307. 



F f 2 Jacqain 



