well with each other, gave for the quantity of gh hydro- 
gen in 1000 CC. of the water, aes grm. To 1000 CC. of 
the water was added a solution of arsenious maid in cae, 
acid, and this gave for the quantity of sulphuretted hydrogen in 
this volume of water, 0.012465 grm 
~The mean of these determinations gives for the quantity of 
sulphuretted hydrogen in 1000 parts, by weight, of the water, 
0.014056 grm. 
Determination of Carbonic Acid. 
1000 CC. with Chloride of Barium, to which had been added 
Ammonia, and fil aig ere for Carbonic Acid, 0.1505 20 
0.1515 for 1000 parts by weight. 
seit 4 Chlorine. 
65.2717 grms, of the water, boiled and acidulated with Nitric 
ree gave with Nitrate of Silver 1.266 Chloride of Silver, which 
dh 8 Pak 6 3130 grm. 
s. of water, treated in the same way, gave for Chlo- 
ride of Siher 1 1.258 grms., which contain .3112 grm. of Chlorine. 
Piensa: of Sulphuric Acid. 
500 grms. with Chloride of. Barium gave for Sulphate of Ba- 
ryta .6955—.2389 of Sulphuric Acid. 
_ §00 grms., treated in the same way, gave for eae of Ba- 
_ ryta .6995 grm.—.2403 grm. of Sulphuric Acid. 
