Analyjis of the Air. 205 



any Air. But Sal Ammoniac, Sal Tartar, 

 and fpirits of Wine mixed together, generated 

 twenty.fixcubick inches of Air, twoof which 

 were in four days reforbed, and after that ge- 



nerated again. 



Experiment LXXXII. 



Haifa cubick inch of Sal Ammoniac, and 

 double that quantity of Oil of Vitriol, gene- 

 rated the firit. day 5 or 6 cubick inches: But 

 the following days it abforbed 15 cubick inches, 

 and continued many days in that ftate. 



Equal quantities of fpirit of Turpe?itine, 

 and Oil of Vitriol, had near the fame effect, 

 except that it was fooner in an abforbing ftate 

 than the other. 



Mr. Geoffroy mews, that the mixture of 

 any vitriolic falts, with inflammable fubftan- 

 ces, will yield common Brimftone; and by 

 the different compofitions he has made of 

 fulphur, and particularly from Oil of Vitriol, 

 and Oil of Turpentine, and by the Analyfis 

 thereof, when thus prepared, he difcovered 

 it to be nothing but vitriolic fait, united with 

 the combuftible fubftance. French Memoirs, 

 Anno 1704. p. 381. or Boyle § Works, Vol. 

 III. p. 273. Notes. 



Expe- 



