12 2 
Mr. Schmeisser's Analysis of 
cubic inches of the fresh drawn water ; and having been imme- 
diately connected with the apparatus, it was placed in a lamp 
furnace. The heat having been gradually increased till the 
water began to boil, six cubic inches of the quicksilver, with 
which the cylinder had been previously filled, were displaced 
by the air which came over. This vessel having been arti- 
ficially cooled to 53 0 , the air was contracted one-fourth of an 
inch. Now, if the two cubic inches of atmospheric air, left in 
the jar, be deducted, there remain 34 cubic inches of air expelled 
from 14 inches of the water. By agitation in lime-water 24 cubic 
inches were absorbed, the precipitated aerated lime weighed 
2-f grains. The remaining gas was found to be hepatic air. 
Experiments to ascertain the fixed constituent Parts of the 
Kilburn JVater , and their Properties. 
EXPERIMENT I. 
Twenty-four pounds of water (at 16 ounces) were evapo- 
rated in one of the Wedgwood basons, by a gentle heat, down 
to four ounces ; this residuum was then reduced to perfect 
dryness in a small glass vessel. The mass thus obtained was 
scaly, with crystals intermixed, and of a yellowish hue; its 
taste was bitter, and but little sharp; the weight 19004I-4 
grains (which were equal to 1560 grains of the further used 
accurate weight), which divided by 24, gives for every pound 
of the water 79 grains of solid matter. The bason in which 
the first evaporation had been made, was rinced with a little 
aqua regia, that such earthy particles as might have adhered 
to it should not be lost; this solution was put aside and 
marked A. 
