54* INDEX. 
Float -boards, parts of water- wheels, p. 372. Their fize, 
how determined, 3 73 — 375. Their velocity, 376— 
380. Their number, 381 — 387. 
Flounder , had above a million of eggs, p. 287. 
Forjter , J. R. his Elfay on the natural hiltory of the Vol^a, 
p. 3 1 2 • 
Frafturcd legs, what is to be done immediately, upon an 
accident of that kind, p. 84. 
Fucufes , true plants, analogous to the Confervas, p, 426. 
Fumes. See Vapours. 
G. 
Ganglions , on the nerves, feem intended to intercept the 
power of the mind ov£r them, p.120—131. Objections 
to this hypothefis anfwered, 121, &c. Feelings of 
nerves come from ganglions bluntand confufed, 125. 
Giraldus Cambrenfis, his character, p. 207. What he 
fays of fome fifh with one eye, in the lakes of Snowden 
in Wales, 208. 
Glafs, broke, by means of electricity, p. 459. Green glafs, 
more difficultly than white, ibid. 
Grinders , of large animals, brought over from North 
America, 465. Different from thofe of the elephant, 
468. 
Gwyniad, Filh of that name whether peculiar to the Lake 
Bala in Merionethfhire, p. 21 1, 212. 
H. 
’■'* t 
Hamilton , the Hon. William, on the eruption of Mount 
Vefuvius, of 1766, p. 192, &c. Paffed feveral nights 
on the mountain during its erruption, 194, 195, 196. 
Farmer, M. Thomas, on the fecundity of fifties, p. 280. 
Heberden, Dr. 1 homas, on the increafe and mortality of 
the inhabitants of Madeira, p. 461. 
Herrings , the number of their eggs, p. 284. 
Honey, its acid, p. 505.-507. P 
Horjlcy , 
