the Diffusion of Gases. 



235 



Experiment 5. Same bulb, &c. thermometer 61. Time 

 five hours. 



1085.7 measures hydrogen were replaced by 278.4 measures 

 air. 



1085.7 



278.4 



= 3.900 =, diffusion-volume of hydrogen. 



Experiment 6. Same bulb, but in this and the succeeding 

 experiment, the bulb was attached to the end of a balance, and 

 counterpoised, so that it adjusted itself spontaneously in the jar 

 filled with water, in which it floated. Thermometer 60. 



1085.7 measures hydrogen were replaced by 279.1 measures 

 air. 



I f\OK Vf 



- 2791 r= 3.890 diffusion-volume of hydrogen. 



Experiment 7. Same repeated. Themometer 61. 

 1085.7 measures hydrogen were replaced by 282.2 measures 



ar. 



= 3 - 847 = diffusion-volume of hydrogen. 



The results of these five last experiments, with the same in- 

 strument, are, in one view, 



