INDEX. 
Orbits of Planets, their Contraction, 77.494, p. 356. 
Orkney , of the Tides there, by Mr. Mackenzie , n. 492, 
P- * 49 - 
P. 
Paintings at Herculaneum , Remarks on them, //. 491, 
P- T 4 - 
Ptfp<?r Money current among the Chinefe , 494, p. 330. 
Papers , feveral, concerning a new Semi-Metal, called 
Platina , w. 496, p. 584 — 596. 
Par aquaria, ObJ. Afironomicce ibidem habitue, 1747. P e) * 
Jefuitas , n. 491, p. 8. 
Parfons , M. D. ( James. ) of the Pi/catrix , 77. 492, 
p. 126. 
Pafchal Limits ( Gregorian ) fhewn by the Earl of Afoc- 
clesfield, n. 495, p. 431. 
Pec&, a Meafure, 491, P- 65. 
Pennant (Mr.) of an Earthquake in Flintjhire , ^pr /7 2, 
175c, ». 497, P- 687. 
Pefcennius Niger, Reflexions on his Medals, 77.49 5, P-452. 
Pbilofophy of Earthquakes, by Dr. /Piw. Stukely , 77. 
497, P- 73i, €&• 
P boenomena (certain) in Ele&ricity examined, by Abbe 
Nollet, n. 494, p. 370—397- 
P/e?r<z rf<? Mombazza, or the Rhinoceros Bezoar, 77. 492, 
p. 1 19. 
——de Cobra de Cabelos, or pretended Serpent -jl one, ib. 
p. 121. 
Pipe, or But of Wine, 77. 491, p. 55. 
Planet , or . 5 W, to find at Noon-day, 77. 493, p. 245. 
Planets , of the Contraction of their Orbits, n. 494, p. 356. 
Plants , a Catalogue of the 50 from the Apothecaries Com- 
pany, for the Year 1746,;?. 491, p- 43. — for the Year 
1747, 77. 494, p. 331.— for the Year 1748, /'A p. 359. 
— for the Year 1749, ». 495. p. 403. 
Platina , a new Semi-Metal, 77. 496. p. 584. 
P/rf« (Mr .Jofeph') of a fpheroidal Stone, 77. 496, p. 534. 
Plymouth, of an Earthquake there, Feb. 8, 1749-50, ». 
497, p. 693. 
5 F 2 
Polarity 
