[ 24^ ] 



V/i.NZEL found 83,5 grains of tartarln to afford him 129 of 

 muriated tartarln, confeqviently 1 00 parts of this fait ftiould 

 contain 64,7 of alkali, and 35,3 of acid, and 100 parts tartarin 

 fhould take up 54,491 of real acid, and afford 154,491 of mu- 

 riated tartarin, all which determinations differ very little from 

 mine, and afford no inconfiderable proof of the accuracy of the 

 table. 



Hence we may deduce the quantity of real acid in Wenzel's 

 fp. of fait and its fp. gravity. '' 



Bv his own account 202 grains of his fp. of fair contained 41;, 5 

 of his ftrongeft acid, confequently 100 grains of it Ihould contain 

 22,52, and 240 grains of it 54, and its fp. gravity about 1,174. 



Bv my calculation 202 grains of his fp. of fait contained 46,44 

 of my real acid, and 100 grains of it contained nearly 23 of my 

 real acid, and 240 of it contained 55,17, and its fp. gravity 

 Ihould be about 1,176. 



Another proof of the accuracy of my determinations will 

 be found in the 2d §. 



Klaproth's determination agrees fully with mine, for to 1 16 grs. 

 of fylvian he afcribes 42 of concentrated muriatic acid, confe- 

 quently 1 00 grains of fylvian Ihould contain 36,2. i Klapr. 134. 



