INDEX. 54. 
Ehret , Mr. G. D. his defcription of the Andrachne, p.i 14. 
Electrical machine contrived by Mr. Read, p. 451, 452. 
Electric fluid, palling through water, p. 459. 
Electricity, its effeds in a cafe of the locked jaw, p. 89, 
90. How to be increafed, 186, 187. How preferved, 
188. New experiments on eledricity, by Father 
Beccaria, 297. 
Electrometer , by Mr. L’Epinaffe, p. 191. By Mr. Lane, 
452. Its principle, 453. Itsufes, 454, 455, &c. 
Ellipfis for dials, how defcribed geometrically, p. 392. 
Ellis, John, Efq-, on the animal nature of Corallines, 
p. 404, Elis difcoveries on the Confervas, 424. His 
account of the Adinia Sociata, or Cluttered animal 
flower, 428. 
Equation , hypermechanical, what, p. 359. Refolved by 
means of a curve, 360. 
Etna, in Sicily, its eruption in 1766, p. 198. 
F. 
Fantoni , Pius, of Bologna, his evolution of a mecha- 
nical curve, p. 358. 
Fergufon, Mr. James, his new method of conttruding fun- 
dials, p. 389. 
Fevers, malignant, called Pulker at Bengali, p. 219. 
Fires, fubterraneous, undermine the whole furface of the 
earth, p. 46, 47. Thofe which produce the whireft 
light are the brighteft, 238. 
Fijhes , different accounts of their fecundity, p. 280, 28 r. 
How it may be afctrtained, 282. Of the river Volga, 
355. 
Fijh, monocular, Arid by Giraldus Cambrenfis, to be found 
in the lakes of Snowden, p. 207. His account con- 
firmed, 209. Found in a lake in France by Mr. Monta- 
lembert, 210, 2 1 1. 
Fleming , Martin, Efq; on the heat of Bengali, p. 21 8. 
2 Float- 
