Mr. CAVENDISH’s Expertments on Air. 153 
{trong confirmation of BerGMAN’s opinion, that none of the 
{pirit of nitre enters into the compofition of the acid, but that 
it only ferves to deprive the fugar of part of its phlogifton. 
But as to the marine acid and acid of tartar, it does not appear 
that they are capable of lofing their acidity by any union with 
phlogifton. It is to be remarked alfo, that the acids of fugar 
and tartar, and in all probability almoft all the vegetable and 
animal acids, are by burning reduced to fixed and phlogifticated 
air, and water, and therefore. contain more phlogifton, or lefs 
dephlogifticated air, than thofe three fubftances. 

Vo. Tree. r x 
