1 9 8 Anahjls of the % Air. 



double that quantity of oil of Vitriol, gene- 

 rated the firfl day f 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 efTed, 

 except that it was fooner in an abforbing 

 ftate than the other. 



Mr. GecfrfGy fhews, that the mixture of 

 any vitriolic faits, with inflammable fubftan- 

 ces, will yield common Brimitone ; and by 

 the different compofuions he has made of 

 fulphur ; and particularly from oiloi Vitriol, 

 and cil of Turpentine *, and by the Analyfis 

 thereof, when thus prepared, he difcovered 

 it to be nothing bat vitriolic fait, united with 

 the combuftible fubftance. trench Memoirs, 

 Anno 1 704./- 3Si,or5^'sWorks,Vol.HL 

 p, 273. Notes. 



Experiment LXXXIII. 



In February I poured on fix cubick inches 

 of powdered Oyfierfhell, an equal quantity 

 of common white- wine Vinegar. In 5 or 6 

 minutes it generated 17 cubick inches of 



air, 



