[ io6 7 ] 
paring the common drink, called Rufs quafs, p. 627, 628. How the better fort of 
quafs, or keefla lichee, is made, p. 628, 629. Remarks on it, p. 629, 630. Their 
manner of making rye bread, p. 630,631. How their faked cucumbers, are pre- 
pared, p. 632. Other food which has the fame tendency, p. 632, 633. Of their 
cloathing, baths, and manner of deeping, p. 634, 635. 
Antsy yarious kinds in the Cadi a country of Sumatra, p. 171. 
Apparatus . Defcription of one to fhevv the different effects of points and balls at the 
upper terminations of condu&ors, to fecure houfes, &c. from lightning, p. 155', 155. ■ 
Experiments with it, p. 136 — 139. Defcriptions of an apparatus ufed in making 
experiments on the effecls of different kinds of effluvia upon air, p. 197. De- 
fcription of one for making new experiments on the nature and ufe of conductors, 
p. 247 — 254. Meafurements, &c. thereof, p. 311 — 313. Defcription of a forked 
apparatus for determining the effeCts of pointed and fpherical terminations to con- 
ductors, p. 1001 — 1003. Defcription of the eleCtrophorus, p. 1027, &c. 
Arabs . An account of a molt dreadful putrid fever, caufed by the Arabs among the 
Turks at Raffora, p. 215. 
Areometry. An ellay on pyrometry and areometry, and on phyfical meafures in ge- 
neral, p, 419. See Pyrometry. 
Artjiotle, his opinion concerning the communicating of motion to bodies, p. 344. 
Arithmetic . On the arithmetic of impoffible quantities, p. 318— 343. 
Ajfa-fcetiday its effeCts upon air, p. 208. 
Agronomical Obfervations made in the Audrian Netherlands, in the years 1773, 177 4, 
and 1773, p. 637. How the obfervations were taken, and with what indruments, 
p. 639 — 641. Longitudes of feveral places, p. 640, Latitude of the Refuge de 
Vrowperg, Rue des Dominiquaines, at Louvain, p. 642, 643. Its longitude deduced 
from obfervations of Jupiter’s fatellites, p. 644 For the longitude of Louvain, 
p.645— -654. Farther obfervations of Louvain, p. 654, 653. For the longitude 
of Bruffels, p. 655—658. Farther obfervations at Bruffels, p. 659, 660. 
Atmofphere . Experiments upon vegetables, refpeCtlng their temperature comparatively 
with that of the atmofphere, in different feafons, p. 41—48. State of the atmo- 
fphere and feafon preceding the earthquakes of 1749 and 1750, p. 228. State of 
them preceding the earthquake at Mancheder, &c. p. 228— 231. Concerning cer- 
tain atmofpheres which bodies have round them when properly charged with eladic 
fluid, p. 307—309. 
Aujlrian Netherlands, adronomical obfervations made there in the years 1773* 1774* 
and 1775, p. 637. Se£ Agronomical Obfervations . 
B. 
