t 6 3* j 
Barometer, ftate of it at London throughout the year 1775, and part of 177 6, p. 320— 
350. At Briftol in the year 1775, p. 367. At Lyndon, in Rutland, for the fame 
year, p. 370. Concerning the barometer belonging to the Royal Society, p. 381 — 
384. Of the deprefiion of quickfilver in the barometer, p. 382. State of the ba- 
rometer at Northampton, during the late froft, p. 58S — 590. What winds accom- 
panied the greatell monthly heights of the barometer for one year in London, com- 
mencing March 17759 p. 363, 364. What winds accompanied its lead: monthly 
heights, p. 364. 
Bafaltes, great native cryftals of, obfervations concerning their having been produced 
by the cryftallization of a vitreous lava, rendered fluid by the fire of volcanos, p. 
539—542. 
Balh-Jlone, rain penetrates through, p. 444.- 
Baths, hot, in the ibuthern part of Africa, p. 274. 280, 281. 286. 298. 
Beqfts, wild, Hottentots bold in encountering them, p. 294, 295. Extraordinary’ 
effects of lightning on the white hair of beafls, p. 494—498. 500. 502. Con- 
jectures concerning it, p. 502. 
Belidtr, his error in applying received doftrines- to praftical mechanics, p.444, 450, 
n. 
Bellows, a double pair of, experiments with them in refpeft of keeping the heart and 
lungs of a dog in motion, p. 4*6, 4 1 7* D e f cr ip^ on them, p. 4 
Belt on the difc of Saturn, defcribed, p. 543. 
Berg Rivier, wonderful effects of a bird among the reeds near it, p. 278. Sea-horfes 
Hill found in it, ibid. 
Bertier , his opinion concerning air in the blood, p. 228. 
Bible, in the Romanlh language, prefented to the Royal Society, p. 129. 
Birds, in Falkland Iflands, an account of, 104— 107. In the fouthern parts of Africa,, 
p. 27S. zS6. 291. 306. 317. Wonderful effeft of one among the green reeds near 
Berg Rivier, 278. 
Births, at Boxley in Kent, more numerous from generation to generation, p. 167. 
Bifet, (Rev. Mr.), his enumeration of the inhabitants of Waverton, in the year 1774,. 
p. 16 6. _ .... , 
m-JJ. an account of a fuppreffion of urine cured by a punflure nude in it, through. 
the anus, p. 578. See Urine. . 
obfervations on its ufe, p. 226, &c. The blood wonderfully formed to mb. be,, 
and part with, phlogiflon, p. 227. Blood difcharges the phlog.fton with which 
the animal fyftem abounds, p. 238. Blood when congealed and out of the body., 
has the fame power of affefting air as when fluid and m the body p. 238-242. 
Alfo a power of taking phlogiflon from air, as well as rmpamng phlog.«o„ to a.r, 
t> 212 22.3 24c. Blood in aftual contaft with air in the Inngs, p. 343 245. 
T„: 4 ld + fl orid Wood contains a confiderable q uan,i,y of phlogiflon, p 2 4? . Oh- 
fervation on the contention of the blood, p. » 47 . M8. See Rfrrvrn. 
SM, in the fouthern part of Africa, fome account of, p. 3 . .. 
