I N D E X 
Barometer gives the Height of Mountains, n. 48(5, p. 257. 
Barometrical Obf. of the Height of feveral Places in 
Siberia , 48 6 y p. 25 6. 
Bath, a Roman Infer iption there, L. Vitcllius , &c. n. 488, 
p. 409. 
Bay-Salt , n. 487, p. 358, 
Belemnitce , Mr. junior on them, ?/. 4 90, p. 598. 
Berlin) E.lipfe of the Sun, /V/,y 14, 1748. obf there, 
n. 489, p. 524. 
jSivvj {John) M. D. of an Eclipfe of the Sun, July 14, 
1748. obf. at Marlborough Houle, n. 48 9, p. 521. 
■ < — — - Eie&rical Experiments crofs the 
‘Thames ^ n. 485, p. 54. New River, ib. p. 6 1.- Shooter s- 
Mill , ibip. 77. 
Beza (Theodore) had a Light round his Eyes, n. 488, 
P-397- 
Birch (the Rev. Mr. Tho.) an Infcription on a Roman’ 
Altar near Stanhope near Durham , n. 48 6, p* 173.- 
Bird , a fort with two Pair of Wings, n . 486, p. 1 57. 
Birds dead, how to preferve them, by M. Reaumur , 
77. 487, p. 307. . 
Bifmuth , its ipecific Grav.ty, n. 488, p. 444. 
Bifon Americana S) n. 48 < 5 , p. 171. 
Bitumens , their fpecific Gravity, n. 488, p. 459. 
Black-lead, its fpecific Gravity, n. 488., p, 447. 
Blight, in Wheat, Rye, E?r. its Origin, n. 490, p.. 6yj % 
Bobaki) mures Alpini , «. 485, p. 183. 
Bonnet (M. Charles) concerning Caterpillers, n. 487, 
p. 300. 
of planting Seeds in Mofs, n. 48 6, 
p. 1 $6. 
Boyle (Hon. Robert) Efqj of fpecific Gravities, n. 488, 
p. 42G 
Bradley {James) D. D. Letter to the Eirl of Macclesfield) 
of an apparent Motion in. fome of the fixed Stars, 
n. 485, p. 1. . 
BrafS) its Ipecific Gravity, ^. 488, p . 439* 
Brocklesby 
