4* INDEX. 
Air diminifbed by a mixture of iron filings and brimftone, 
p. 207, 208. Very noxious to animals, p. 209. 
Air infedted with refpiration, p. 181. Unfuccefsful trials 
to reftore it, p. 183, 184, & c. Is the fame with air 
tainted with animal putrefaction, p. 186, 187. Differ- 
ent from, though analogous to, fixed air, p. 1 8 8, 189. 
Not fatal to feveral infedls, p. 192. Cured by vegeta- 
tion, p. 193, &c. and probably by a mixture of fixed 
air, p. 204. 
Air in Ireland, and likewife in England, obferved to be 
in a conftant date of pofitive eledlricity, during winter, 
p. 138. Probably by the effedt of cold, p. 139. 
Air tainted with the fumes of charcoal, p. 225. Ex- 
tinguiffies flame, and deltroys animals, p. 227. 
Air vitiated by flame, p. 162. How much diminifhed 
by it, p. 163. Not altered in its fpecific gravity, 
p. 164. Not fatal to animals, p. 165. Whether 
reftored by cold, ibid. Is fo by vegetation, p. 1 66, 
167, &c. 
Angular diftance between two near land objcdls ; how ob- 
lerved by Hadley’s quadrant, p. 1 19, 120. 
Animal living, not diffolved in the ftomach of another 
animal, p. 449. 
Antipodes our, may have a contrary eledfricity in the air, 
p. 189. 
Antium , famous for its worfhip of the goddefs Fortune, 
p. 63. 
Jrijlotle , the author of the opinion about the cuckows 
having no nefl of their own, p. 322. Did not write 
from his own obfervations, p. 323. 
AfcenJion y the point of the longeft in the ecliptic, found, 
p. 438. 
Agronomical obfervations at Portfmouth, p» 36, &c. 
Agronomical problems folved by Dr. Pemberton, p. 434^ 
Atmofph.ere injured by the refpiration of animals and 
putrefadHon ; probably reftored by vegetation, p. 198. 
Atmospherical electricity. See Air, Fogs , Eledlricity . 
Babelmandd 
3 
