1917] 



on Soap Bubbles of Long Duration 



209 



The calculated value? are at first too high, but later vary slightly 

 on either side of those directly 'deduced from observations (see 

 Fig. 14). 



The values in milligrammes per day, of the rate of absorption 



Fig. 14. — Condensation on Bubble in Wet Hydrogen. 

 Eate of condensation, plotted to time. 



on unit area with an air bubble 15 1 cm. in diameter, are given 

 in the subjoined Table 14. They were deduced from the weights 

 of liquid collected in the periods named. The composition of the 

 Vol. XXII. (No. ill) p 



