Analyfis oj the Air. i8j 
as 224 to 1 80. But weight for weight, nitre 
contains a little more air in it, than this Sal 
Tartar made with nitre. But Sal Tartar 
made without nitre, has probably a little 
more air in it than this had, becaufe it is 
found to make a greater explofion in the 
Fufois FulminanSy than the nitrated Sal 
Tartar . But fuppofmg, as is found by this 
Experiment, that Sal Tartar , according to 
its fpecifick gravity, contains 4 part more 
in it than nitre 5 yet this excefs of air is not 
fufficient to account for the vaftly greater 
explofion of Sal Tartar than of nitre; which 
feems principally to arife from the more 
fix’d nature of Sal Tartar $ which therefore 
requires a more intcnfe degree of fire, to 
feparate the air from the ftrongly adhering 
particles ; than is found requifite to raife the 
air from nitre. Whence the air of Sal Tar- 
tar mufi: neceflarily thereby acquire a greater 
claftick force, and make a more violent ex- 
plofion, than that of nitre. And from the 
fame reafon it is, that Aurum Fulminans 
gives a louder explofion than Fulvis Ful- 
minant, The fcoria of this operation did 
not run per deliquium , a proof that all thQ 
Sal Tartar wasdiftilled over. 
horn 
