INDEX. 
Pallas, observations on a star so called, 
Piazzi , Mr. Observations on a moving star discovered t 
Pictet, M. Remarks on some experiments of his, 
Account of a phenomenon observed by him, 
Planets, definition of them, - 
Platina, on the action of potash upon it, 
— - — method used to detect it in gold, 
— most sensible test for, - 
Potash, on its action upon platina, 
- — on its volatility, 
— hyper oxygenized muriate of, remarks on, 
Presents received by the Royal Society, from Novembe 
July 1802 , - 
Pr evost, P. Quelques remarques sur la chaleur, et si 
des corps qui 1 interceptent, 
His theory of heat. 
powers by, 
Quartz , remarks on. 
9 . 
s 
Sapphire , description of, 
• analysis of, 
See Corundum. 
Scheele, on his method of preparing calomel. 
Sidereal systems , of binary ones, 
— — of complicated ones. 
Silica , hyper oxygenized muriate of, remarks on, 
Soda, on its volatility, 
hyperoxygenized muriate of remarks on. 
Spar , calcareous , remarks on, 
Spinelle, remarks on, 
— on its matrix. 
Stars, catalogue of clusters of, 
of insulated ones, 
— — of double ones, 
of treble ones. See. 
-- of clustering ones, 
— — — of groups of them. 
page 
216, 
232 
D, 
213 
O 
co 
440 
43 2 
224 
- 
337 
337 
- 
338 
337 
- 
338 
139 
01 to 
- 
5 2 9 
iction 
- 
403 
- 
442 
ersive 
3 6 5 
295 
2 33 
33 2 
«« 
159 
\ 
480 
486 
- 
150 
33 8 
«■* 
144 
260 
- 
305 
- 
3°S 
477 
,50 3 
478 
m 
480 
486 
- 
495 
496 
