•I 







108 



Anatyfis of the Air. 





double that quantity of oil of Vitriol, gene- 

 rated the firft day $• or 6 cubick inches : But 

 the following days it abforbed 15 cubick 

 inches, and continued many days in that 

 ftate. 



Equal quantities of fpirits of Turpentine, 

 and oil of Vitriol, had near the fame erTeft 

 except that it was fooner in an abforbin«- 

 ftate than the other. 



Mr. Geoffroy fhews, that the mixture of 

 any vitriolic falts, with inflammable fubftan- 

 ces, will yield common Brimftone 5 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 1 704./. 381, or Boyle's Works, Vol. HI, 

 J>. 273. Notes. 



■ I 



' Experiment LXXXIII. 



In February I poured on fix cubick inches 

 of powdered Oyfterfhe/l, an equal quantity 

 of common white-wine Vinegar. In 5 or 6 

 minutes it generated 17 cubick inches of 



* ' \ • 



air, 



H 



diocks 



MIC 



ittfed 



Hi 





