INDEX. 
Rhinoceros Bezoar, 77. 492, p. 120. 
Robert foil (Mr. John ) of the Analogy of Logarithmic 
Tangents to the Meridian Line, n. 496, p. 559. 
Robins (Mr. Benjamin ) Obf. on the Height to which 
Rockets afcend, 492, p. 131. n. 496, p. 5 78 j and, 
to what Diftance their Light may be leen, ib. p. 582. 
Roman Infcription, Remarks upon, by Mr. John Ward , 
n. 494, V- 2 93 - 
Ronde CMr.) dry Gangrene ftopt, n. 491, p. 75. 
Rttjjfel, Efqj ( Michael ) of an Earthquake at London , 
March 8, 1749-50, n. 497, p. 6 31. 
RtiJJia Caftor, the true Sort, n. 493, p- 217. 
Rutlandjhire , an extraordinary Meteor feen there, 77, 493, 
p. 248. 
S. 
of Wool, 7/. 491, p. 66. 
Salt Mines near Cracau, n. 493, p. 228. 
Salvadora, a new Genus of Plants, by Dr. Garcin 3 77.491, 
P- 41 - 
Sayer (Mr. J.) of Mr. Smith's Cafe ; the Coats of his Sto- 
mach turned into a cartilaginous Subftance, 77.491, 
P- 3 °- 
,<Vdde77 (Rev. Mr. of an Earthquake at Warrington 
in Lancajhire , ytfpn/ 2, 1750, 497, />• 695. 
Sediments found in fome particular Purging Waters, 77. 
495, p. 446. 
Seeds , their Minutenefs in fome Plants, 77. 494, p, 337. 
Seminis 'vice, obf. per Albert Haller , n. 494, p. 340. 
Semi- Metal , a new, called Platina , 77. 496, p. 584. 
(Mrs.) fells large Globes, prepared by her late Huf- 
band, 77. 493, P. 290. 
Serpent- ft one , of the pretended, by Sir Hans Sloane 3 Bart. 
77. 492. p. 1 18. 
Short (Mr- James) Defcription and Ufes of an Equatorial 
Telefcope, 77.493, p. 242. 
of an Ecliple of the Moon , obf at Mr. Graham's in. 
Fleet- (lrect 3 1749. 77. 493, p. 247. 
Short 
