376 



TABLE II, - Comparison of calculated and experimental damage to 



Av. % Dev, 



from Expt.; 



+40^ 



Av. % Dev. 

 from Expt, 

 -3,1% 



* Cavitation. 



** (1) Two-mode Bessel-function treatment. 

 (2) Parabolic treatment. 



59 



