Adeney and Becker — Solution of Nitrogen and Oxygen. 401 



Table 4. — Comparison of Results of Analysis of the Dissolved Gases 

 with Manometer Observations. 



<--d-~> 



* These figures give the initial air-contents in the case of distilled water and sea-water 

 respectively. 



The volume shown dotted in the diagram (fig. 6) is equal to 

 / <P\ d x 2 d 1 s (drd x ^ 3 \ 



V and the volume of the cylindrical shell is 



k-d-,-* 



l- 



rfi 



>-i 



•3-10 ccs. 



cP - d 1 t \ 

 ~~T~ J 

 cPdi d/\ i d- - rf, a 



8 ~ 12 J + \ 4 



rf, 3 - 6 W, 2 + 6 IcP = -984 x 24, 

 <*,* - 96-2 ctf + 114-93 = 0. 



By trial it was found that the value of d x which very nearly 



satisfied this equation was <tf, = 1-0993 cms. Having found 



• the internal diameter of the bubble, it was comparatively 



simple to calculate the surface area. This is made up of the 



top hemispherical area + cylindrical area + base area : 



i.e., 



Itt -j- + irdi ( I 



d? 



Fie. 6. 



= w(L I + 



d. 



= 1-0993 x 3-1416 (16-04 + 0-2748) 

 = 56-344 sq. cms. 



SCIENT. PE0C. R.D.S., VOL. XV., NO. XXXI. 3 S 



