LIQUIDS AND ALLIED UXPERIMENTS. 

 Table 3. — Diffusion of air through water into air. 



19 



MgP^H/ I 



w = 



R 



( ) ; il/= 12.01 grams; i? = 2.87 X io«; p,n= 13.6; /I = il/gp«/i? = o.05583; 



Vp.„ P»/ 



w "^0 



1 = 2^.0 cm. •,h"=\'j.o cm. ; 2h"' =1^.0 cm.: i/pj = o.3486;* water head 0.1 1 cm. 

 Diameters: Vessel=4.3 cm.; lloat = 2.5 cm. Areas: ^'=14.5 cm. ^; A = -j.o'^ cm..^ 



*Cf. §24. 



