504 INDEX. 
Morris , Dr. Michael, his account of a fpecimen of native 
lead, p. 20, 21. 
Mountain rcfe , a fpecies of the Browneas plants defcribed 
by Mr. Bergius, p. 175, 176. 
Mujiel , Mr. his obfervations on vegetation, p. 126, &c. 
N. 
Naples , how the houfes are there ornamented, p. 326, 
32 7 - 
Nerves, probably fubfervient to the eleftrical powers of 
the torpedo, p. 487. 
Nightingales , have the mufcles of the larynx ftronger than 
other birds of the fame fize, p. 262. May be heard 
at half a mile, p. 279. Their fuperiority in point of 
fmging afcertained, p. 281, &c. 
Nooth , Dr. on improvements in the electrical machine, 
P- 333 - 
O. 
Obliquity. See Ecliptic. 
Ofcans and Samnites. See Meddix. 
P. 
Panton , Paul, Efq; on the increafe of population in 
Anglefey, p. 180. 
Petals , being cut, fecure fructification, p. 130, 131. 
Points , recommended by the committee, for the bars 
railed at the top of the magazines at Purfleet, p, 45. 
Difapproved by Mr. Wilfon, p. 48. Further oppofed 
by him, p. 50. 
Population. See Anglefey. 
.Powder magazines at Purfleet, p. 42, 43. How to be 
preferved from lightning, p. 45, 46. 
Ptarmigan. 
