index:. 
Nixon, John, obfervations additional to fame made before 
on plates of white glafs found at Herculaneum, p. 123. 
Nollet, Abbe, his treatife on Electricity, an account of it, 
P- 33 6 - 
Norwood's meafure of a degree on the Meridian, publifh- 
ed A. D. 1636, p. 366, 369. 
O. 
OJJification of mufcles, the method ufed to cure it, p. 144. 
OJfory , Bp. of, his account of a production of nature at 
Dunbar in Scotland, like the Giant’s Caufeway in Ire- 
land, p. 98. 
Oxford , an account of an Anthelion obferved there, p. 94. 
— and of a Meteor, p. 99. 
P. 
C. Papius Mutilus , general of the Samnite forces in the fo- 
cial war, his name preferved on a Samnite denarius, p. 31. 
Parallax of the Sun, different accounts of it, p. 60S. de- 
termined by thetranfitof Venus, p. 611/ 
Parcieux's tables of Jives, p. 59. 
Paris , obfervations there of the tranfit of Venus, 221. 
Penfilvania , the method ufed to prevent ill effefts of thun- 
der ftorms, which are very frequent there, p. 633. 
Pericordium , the nature and ufe of it, p. 271, 272. 
Philadelphia , an Aurora borealis obferved there, p. 474. 
Pingre , his obfervations at the ifland of Rodrigues on the 
tranfit of Venus, 371. — the parallax of the Sun there as 
found by him, p. 60S. 
Planman , Monf. his obfervations at Cajaneburgh in Swe- 
den on the tranfit of Venus, p. 231. 
Planets , the irregularities of their motions caufed by their 
mutual attractions, p. 275. 
Plants, a catalogue of the fifty prefented to the Royal So- 
ciety by the apothecaries company, A. D. 1760, p. 85, 
and A. D. 1761, p. 491. 
many, which apparently thrive with us, have not the 
fame productions as in other parts of the world, p. 
93 - 
Pliny , 
