230 Analyfis of the Air. 



ticity was deftroyed by the burning Candle. 

 As the air cooled and condenfed in the re- 

 ceiver, the water would continue rifing a- 

 bove that mark, not only till all was cool, 

 but for 20 or 30 hours after that, which 

 height it kept, tho' it flood many days; which 

 fhews that the air did not recover the elafti- 

 city which it had loft. 



The event was the fame, when for grea- 

 ter accuracy I repeated this Experiment by 

 lighting the Candle after it was placed un- 

 der the receiver, by means of a burning glafs, 

 which fet fire to a fmall piece of brown pa- 

 per fixed to the wick of the Candle, which 

 paper had been firfi dipped in a ftrong folu- 

 tion of Nitre in Water, and when well 

 dryed, part of it was dipped in melted Brim- 

 pone 3 it will alio light the Candle without 

 being dipped in Brimftone. Dr. Mayo r jj-> 

 found the bulk of the air leffened by 3 - part, 

 but does not mention the fize of the glafs 

 veffel under which he put the lighted Can- 

 dle, T>e Sp. Nitro-aereo. p. 101. The capa- 

 city of the veffel above z z, in which the 

 Candle burnt in my Experiment, was equal 

 to 2024 cubick inches; and the elafticity of 

 the } 6 part of this air was deftroyed. 



The 



