(260 EXPANSION. 
Table of the Expansion of Gaseous Bodies. 
Gases. For 180,; For 19 : 
air, 1, at 32° 7 6] .00209 Mean of six observations, Lacaille making it .04, 
Dy 46, Bonne 0877, Shickburgh O05, Bradley 
and De Luc .047, for the expansion. From 32° 
to 54,8°: the mean .0476. De Luc. . 
Do, a oe ane 377 Mayer’s refractions, Gilbert. : 
Do. hy naw Seo: .370 | .00206 | Lambert. y ie 
Do. -388 | .00216 | De Luc, reduced by Gilbert. © 
Do. 381 | .00212 Luz. Csi 
Do. 00214 About 95°, Luz. 
Do. 00210 | About 172° Luz. 
Do. ; (.484)} (.00243) ;_but moisture was admitted. . 
Do. aS ee -357 | .00198 oe : thinks it perfectly uniform, becoming 7. at 
00212 | About 172°. Dalton. 
Hydrogen gas. : , 
Oxygen gas. 
Azotic gas. 
Murietc acid fae All as air. Gay Lussac, and Dalton. 
Nitrous gas. ‘ 
Vapour of sulphuric ether. ab — 
It follows from these experiments, that all the gases 1805. Croune, Birch’s Hist. of Soc. vol. iv. 
“ths same expenidn: from tial ieend “Stead a p.263. De Luc Recherches sur les Modi ms de? Ata 
temperature, the expansion for each of Fahren- , tom. i. p. 225. Biot Memoires a tom. 
heit being .}, according to Dalton, xyes according 3. (not yet ) Gineau Mem. de U'In- 
to Gay Lussac, An account of the expansion of the va~ _stitut. Manchester Me vol. v. p. 59. 
of water, will be found in our article S: Dalton, Nicholson's Journal, vol. x. p- 95; xiii. 3 
For information on this subject, see Elli and xiv. p. 128. ‘ Transactions, vol. v. 
Phil. Trans. vol. xlvii. p. 185. F ’s Lectures, vol. pe Gough, Nich 's Journal, vol. xiii. p. 189. 
i. p- 20. Smeaton, Phil. Trans, vol. xlviii, pt. 2 p. 612. Mushet, Phil. M , vol. xviii. p. 1. Gay ? 
Roy, Phil. Trans. vol. Ixxv. p. 473. rea oe Annales de Chimié, tom. xliv. p. 87, or Nicholson's Jour= 
cholson's Journal, vol. ix. p.225. Wollaston, Phil. Trans. nal, Oct. vol. iv. p. 207. Brewster, Phil, Trans. 1814, 
