504 - ?- 



throughout, enaOles one to predict with confidonce such quantities as the maximum radius, period of 

 oscillation, and the trajectory of the centre of the DuDOle up to first minimum. Owing to a variety of 

 causes, such =,s flattening of the buDble and dissipation of energy in various urays, phenomena which depends 

 on the behaviour of the bubble near its minimum r^.dius, such 5S the actual minimum volume and the pressure- 

 time curve due to the oscillations of the bubble, c-:;nnot be sst isf-xtori ly predicted theoretically. 



