C Io6 s 3 
A N . 
INDEX 
TO THE 
SIXTY-EIGHTH VOLUME 
OF THE 
PHILOSOPHICAL TRANSACTIONS 
A. 
ADULTER V, how punifhed among the Battas in Sumatra, p. 1 66, 167. 
Air* Experiments upon air, and the effedts of different kinds of. effluvia upon ity. 
made at York, p. 194. Soil and fituation of York defcribed, p. 195, 196. De„ 
fcription of the apparatus ufed in making the experiments, p. 197. Experiments 
on the ffate of the air, p. 198, 199. Experiments, to find the effedls of animal ex- 
halations upon air, p. 199 — 201. To difcover the effedls of vegetable effluvia upon 
air, p. 201 — 203. Remarks on thofe experiments, and on the dreadful confequences 
arifing from animal and vegetable matter in a Hate, of corruption, p. 203 — 207, 
The effedt of effluvia from ripe fruit upon air, p. 207, 208. Experiments on the 
effect of odours upon air, p. 208, 209. Plants have a. different property in them in 
their growing flate, p. 210. Experiments on the effedts of the effluvia from moift, 
marfhy, and other kinds of foils, upon air, p. 210 — 217. Loamy, vegetable earth, 
contains but little noxious effluvia, p. 218. Pure clay and fand foils favourable to 
health, as they emit no noxious effluvia, ibid. Inferences proved by the preceding 
experiments, p. 218 — 220. 
Air y uncommonly clear in Chelter, p. 134. Water corredts and purifies air ren- 
dered noxious by refpiration and putrefadtion, p. 141. Concerning the expanlion 
of air in meafuring heighths with the barometer, p. 682 — 684. 
Albicore y fome defcription of one, p. 396, laji column * 
Algebra . On the arithmetic of impoffible quantities, p. 318 — 343. Reflections on the 
communication of motion by impadt and gravity, p. 344. — 379. Cbfervations oa 
the.,; 
