ON THE COMPOSITION OF GASES EVOLVED BY KING S BATH. 



385 



Composition of Gases in 100 volumes. 



Carbonic 

 acid. 

 3-454 

 3-511 

 2-948 

 3-056 

 2-721 



Oxygen. 

 •19 



•42 



•525 



•376 



Marsh-gas. 



•18 

 •216 



Carbonic 

 oxide. 



•24 

 •186 



Nitrogen. 



96-212 

 96-019 



The carbonic oxide was no doubt produced by the potassic pyrogallate ; 

 allowing for this, the composition of the gases will be 



4. 

 5. 



I. 

 II. 



I. 

 II. 



Carbonic 

 acid. 

 3-454 

 3-511 

 2-948 

 3-056 

 2-721 



Oxygen. 

 •19 



•54 



•617 

 •376 



Marsh-gas. 



•18 

 •216 



Nitrogen. 



96-332 

 96-111 



No. 2 gave 2311 cubic centimetres per minute. 



4 

 3 

 5 

 6 



7 

 8 



2640 

 „ 2256 

 „ 2490 

 „ 1886 

 „ 2199 

 „ 1784 



7) 15566 





Mean 2223-7 cubic centimetres of gas at 0° Cent, and 

 760 millimetres mercurial pressure per minute. 



Method of collecting Oases from the Kino's Bath at Bath. 



The bottle marked 1 to be taken from box at a time when there is a 

 depth of eighteen inches of water in the bath. 



The string by which its stopper is attached to be cut, and the stopper 

 (enveloped in paper) to be put in waistcoat pocket of operator. The bottle 

 to be filled with water by immersing it in bath mouth upwards, until all the 

 air has escaped from it. 



Tin funnel to be placed over the opening through which water flows into 

 the bath, in such a position that all the gas which bubbles up from the spring 

 will rise into the funnel. 



Bottle full of bath water to be inverted over funnel and left there until 

 quite full of the gas. ' The bottle is then 

 to be carefully lifted off the funnel, its 

 mouth being constantly kept under wa- 

 ter, and again filled with water in the 

 same manner as before, viz. by immers- 

 ing it in the bath until all the gas has 

 bubbled out of it. 



When thus filled with water a second 

 time, the bottle is to be shipped over the 

 mouth of the funnel at the moment 

 that an assistant, holding a watch mark- 

 ing seconds in his hand, calls out that 

 the seconds' hand is at the point marked 

 o on the scale. 



1865. 



9 



2 D 



