230 liLASTIC FLUIDS. 



milky. There was not any perceptible diflerence vvhalever 

 gas was in the upper phial *". 



SECOND CLASS. 



Hydrogenous Gas with Aimofphaic Air and Oxigenous Gas. 

 Hydrogen, with ]. Two fix ounce phials were conneded by the tube of a 

 ar!d oxi^em '"^ tobacco pipe, three inches long, the upper containing hy- 

 drogenous gas, the lower atmoCpheric air : after flanding two 

 hours, the lower phial was examined ; the mixed gafes it 

 contained made iix explofions in a fmall phial. The gas in 

 the upper alfo exploded, 



2. Two four ounce phials conneded with the ten inch fraall 

 tube flood two days, having common air and hydrogen gas. 

 Upon examination the upper was found to be y common air 

 by the teft of nitrous gas. The gas in the under exploded 

 fmartly; that in the upper moderately with a lambent 

 Dame. 



3. Two one ounce phials were conneded by the ten inch 

 tube, containing common air and hydrogenous gas ; in three 

 hours and a half the upper was about - common air and the 

 under -J ; the former exploded faintly; the latter fmartly. 



4. Two oh^ ounce phials were connected as above; the 

 under containing gas about | oxygenous, the upper hydroge- 

 nous : In three hours the latter was ^ oxygenous, and the 

 former about |; the upper exploded violently, the under, 

 moderately. 



5. Two one ounce phials were again conne6led, the lower 

 having almofpheric air, the upper hydrogenous gas; they 

 Hood fifteen hours, and were then examined ; the upper gave 

 1.67 viiih nitrous gas, the under 1.66. — Hence it is evident 

 that an equilibrium had taken place, or the two gafes were 

 uniformly diffufed through each other in both phials, 



THIKD CLASS. 



Nitrous Gas, xvith Oxigenous Gas, Almojphcric Air, Hydra- 



genous and Azotic Gafts. 



Nitrous gas The refuUs of the preceding experiments upon gafes that 



with oxigenous, j^^^^ ^^ known affinity for each oiher, were conformable to 

 atmolphenc hy- •^ 



Motcr"^* "*^ * The fmall tube of ten inches was then ufed and a phi:il of 

 common air ; in one hour much acid gas had come through, as 

 appeared by lime water. 



what 



