I ' 696 ] 
the fun, yields a great quantity of dephlogifticated air, p. 3 77, Experiments on 
air, extraded from various kinds of water, p. 432. Experiments on air from the 
water of a well, p. 433. And from the water of the Seine, ibid. And from that of the 
river Arqueil, p. 436. And from diftilled water, p. 437. Water abforbs a greater 
quantity of thofe kinds of airs which contain a lefs quantity of phlogifton, p. 439. 
Thefe experiments explain why fome kinds of waters have a fharper tafte than others, 
p. 440. And why they precipitate the lime in lime-water, ibid. Likewife why 
fome waters difTolve iron, and keep it diflolved without any fediment, ibid. Dif- 
tilled water, deprived of air, imbibes an equal quantity of air of the fame kind as 
that it had loft, in lefs than fifty days, ibid. Pure water changes common air into 
dephlogifticated, and is the beft means of meliorating common air, ibid. Which 
may be one of the methods by which nature keeps the atmofphere in a ftate fit to 
fupport animal life, p. 441. How to prevent the air being altered (in extrading 
the air from water by the adion of fire) by the vapour of the water itfelf, p. 442. 
Common air, fhaken in water, is fenfibly increafed in its bulk, p. 443. But de- 
phlogifticated air is diminiftied, p. 444. 
Weather . Gbfervations on that of the year 1778, made at Lyndon, p. 348. At 
Briftol, p. 533. 
Weirs in rivers, the advantage of them, p. 394. 
Wejley . Singular talents of two children of that name for mufic, p. 204. 
Whirlpools. What they come from, p. 607. 
White, Mr. Charles . A fad aflerted by him, Vol.LIX. Art. 6th, of the Philofophical 
Tranfadions, confirmed, and a proof given that a chirurgical improvement, propofed 
by him in that article, may be extended to other parts of the body, p. 6. 
Whiting . Experiment on dryed, p. 33. 
Wind™ ard-IJles, Gbfervations on the climate of the, p. 216. 
Winne, Mrs. Her early talents for mufic, p. 203. 
Z. 
Zinc* The flowers of, given without efFed in a St. Vitus’s dance, p, 2. 
Zeolite . Experiments on the Norway, p. 27. 
