INDEX. 
Sapphires , their fpecific Gravity, n. 488, p. 450. 
Saturmis habuit anftilas valde exiles , dein anfulis penitus 
orbatus , ». 490, p. 673. 
Sediarum Dens Mars , on a Fcffara, n. 48 6, p. 225, 231. 
Seeds, planted in Mcfs , by Mr. Bonnet , 77. 486, p. 156. 
Seeing of Fifh, of the, by Mr. Arder-on , 7/. 486, p. 151. 
Segontiaci , their Eounds, 77. 490, p. 603. 
Semen , male, Examination of various Sorts of, 77. 490, p.642. 
a univerfal, by Mr. Needham , 77. 490, p. 654. 
Semi-Metals , their fpecific Gravities, 7;. 488, p. 444. 
Scries, affeded by radical Signs, by Mr. Simp [on, 77.487, 
p. 328. 
Shell- fifh , the Bottle, lodged in a great Stone from Mahon 
Harbour, by Mr. illor? and Dr. Parfons, n. 485, p. 44. 
Shining , Men, Animals, and various things, in the dark, 
77. 488, p. 397. 
Short (Mr. James') Obf. of the Eclipfe of the * 5 W», 
14, 1748. at Aberdour, .77.490, p. 582. 
Short-hand Elements, by Mr .Jeake, 77. 487, p. 345. 
Mr. Byrom’s Remarks on Mr. Jeake’ s , 77. 488, 
p. 388. 
Shooter s-Aiil, eledrical Experiments there, 77. 485, 
p. 77, 86. 
Shrine , an ancient; from Croyland , by Dr. St likely, n. 490, 
P- 579 * 
Sib ir ice hijl. PI ant arum , five Flora Sihirica , vol. 1. 77.486, 
p. 248. 
Siberia, the Height of feveral Places above the Sea, taken 
by barometrical Obfervations, 77. 486, p. 256. 
. of the furprifing Cold there, 77. 486, p. 259. 
Silchefer, of its prefent State, by Mr. Ward, 77. 490, p. 603. 
Silver, its fpecific Gravity, n. 488, p. 438. 
Simpfon ( T'ho.) Mr. of the Motion of Projetfiles near 
the Earth’s Surface in Gunnery, 77. 486, p. 137. 
of the Fluents of Multinomials and Series 
affeded by radical Signs , which do not begin to con- 
verge till after the fecond Term, n. 487, p. 328. 
Skelton s 
