Adeney and Becker — Solution of Nitrogen and Oxygen. 611 



compared with the standard scale, and the area of the bubble was calculated 

 from the formula deduced in the first part of this communication. The results 

 of the measurements are aiven in Tables I and II. 



Table I. 



Measurements of Bubbles of Different Volumes. 



Table II. 



Calculation of Areas. 



(b) Effect of temperature on the length of the bubble in motion. 



A number of measurements was also made of the length of the 15 c.c. 

 bubble at different temperatures, and the results are recorded here ; for, 

 although they appear to have no direct bearing on the object of the inquiry, 

 they may be of use in throwing light on the nature of the motion of the 

 bubble up the tube. 



5 d2 



