PAR 
the metals of reflecting telefcopes ; together 
with a defcription of the procefs for grinding, 
policing, and giving the great fpeculum the 
true parabolic curve - Mudge 
PaRABOloeid. Letter afferting the firft invention 1 
and demonftration of the equality of the curve 
line of a paraboloeid to a ftraight line, and 
next the finding a ftraight line equal to that ot 
a cycloid, and of the parts thereof IV alii s 
Two other letters to the fame purpofe 
Anon. 
Parabolic Glasses of M. de Sons, Progrefs in 
working parabolar glaffes - Oldenburg 
— A fhort narrative of the ftruClure and effe£t of 
parabolic burning glaftes made by Mr. Hoefen, 
of Drefden, and an account of experiments 
made with them on the fulion of different 
fubftances - - (Volfi 
Par all ax. See Eclipfe , Moon , Planets , Sirius , «SW| 
Paracentesis. An anatomical account of fome 
remarkable things found on the diffeCtion of a 
woman who died of a dropfy, after the Para- 
centefis was performed, with a fmall reflec- 
tion on the caufes of the dropfy - Prejion 
Paraguay. Aflronomical obfervations made at 
Paraguay, in South America, from 1706 to 
1730 - - De Cajlro Sarmento 
Paraselenes. An obfervation of an extraordinary 
lunar circle, and of two parafelenes made at 
Paris, 061 . 20, 1747 - Grefchow 
Pardines. A narrative of an extraordinary finking 
down and Hiding away of l'ome ground at Par- 
dines, near Auvergne - Anon . 
Pareira Brava. An extraCf of a letter concern- 
ing pareira brava, a root from Brafil, where 
it is called the Univerfal Remedy, with the 
preparations of it - Helvetim 
Parenchymous. Some confiderations concerning 
the parenchymous parts of the body King 
Parhelia. An account of four funs feen in France 
journal des Scavans 
— An account of two parhelias or mock funs 
lately feen in Hungary, Jan. 30, 1668 
Brown 
*— 1 Difcourfe concerning the caufe of halos and 
parhelias - - Hugens 
Tranf. 
LXVII 296 
VIII 6146 
— 6149 
I 1 19 
LIX4 
XIX 33 o 
XLV 667 
~ 5 2 4 
XLI 272 
XXIX 365 
1 316 
— 219 
IV 953 
— 1086 
sn 
Ahridg. 
1 x 93 
— 116 
III 141 
X 118 
— 4 8 3 
V 404 
III 17 
II 186 
— 186 
— 185 
189 
Parhelia, 
