I N D E X. 
Polarity of a Mariners Compafs deltroyed by the Effects 
of Lightning, n. 492, p. 1 1 1. 
Portable Obfervatory, or the Equatorial Telelcope, it. 
493 , V • 2 4 2 - 
Port [mouthy of an Earthquake there, March 18, 1749-50, 
by Mr. John Ellicott , n. 497, p. 646. — by Dan. IVray , 
E% ib. p. 647. — by Mr. Taylor, ib. p. 649. 
Pottle , a Mealure, n. 491, p. 65. 
Pringle , M. D. (John) Experiments on Subftances refill- 
ing Putrefaction, 495, p 480. 525. 550. 
Purging Waters , the Strength of feveral examined, by 
Dr. Stephen Hales , 7;. 495, p. 446. 
Putrefablicn, what Subftances refill it, 495, p. 48a and 
71. 496, p. 525. 5)0. — Whathaften and promote it, ib * 
V- 55 3 - 
Q: 
Quadrantal, a Roman Meafure. n. 491, p. 70. 
garter, of London , ib. p. 65. 
Queries concerning the Tides in a large Ocean, w. 492, 
p. 158. 
R. 
Rainbow, an extraordinary, obf. July 15, 1748, by Peter 
Deval , Elq; «• 493, p. 193. 
Pifcatnx, by Dr. James Parfons, n. 492, p. 126. 
Reaiv-nr CM. de) of an Earthquake in France , Offob. 11, 
1749, n. 497, p. 69 11. 
Recks’s ( Nicolas ) Cafe, touching his being born with his 
Feet turned inwards, n. 493, p. 239. 
Reflettions on the Medals of Pefcennius Niger, by M. le 
Bcze, n. 495, p 452- 
Remarks on the Effects of Lightning, in deltroying the 
Polarity of a Mariners Compafs, 49^2, p. 113. 
made in his Travels through Italy, by Rob. More , 
Efqj n. 495, p. 464. 
Refpirationis Experiment a aliqua, per Alb. Haller, n. 494, 
P- 3 25 : 
Reynard/ou, Efq; ( Samuel) of EngliJJo Weights, andMea- 
lures of Capacity, ?/. 491, p. 54. 
Rhinoceros 
