322 



substituting this value in the right hand side of equation (B), 

 also simplifying the numerator, we have 



v = v 



l~F 



therefore 



V =V X 



l-F' 



P 



1 1 P 



Modifying the right hand side of this last equation, by dividing 

 each term by the coefficient of i^, we have 



Let 



V =v 



M ^ p 



i_i 

 P P 



^ 1 P 

 M^'^P 



1 , P 



1 1 

 p' p 



-F. 



beP; 



then v' = vx ~ — =, ; being the formula given in note, Proceed- 

 ings of Royal Irish Academy, vol. ii. p. 565 ; F being \/ {fxf')i 

 or the geometric mean of forces of aqueous vapour. 



