160 



large Dui'Olons . Q/P - , . v^ 



(r'.if 





FiG-l- The function f(x) m tfie equation u," - FCtlu,. where a-a^b, 

 t - y(PV) t/a. -)- '1' t 



A - '^Cj^ „v(»'-'-'i''-'<a(--»')l 

 When (8, (01- o, curve stinnks to straight line p-l 



FIG • 2 • Graph of /S^ when n - 1 , P/Q = 10'. giving (small) 



displacement of ccnlnc of bubble as a function of « 



lime mea5urcd in terms of x , where 



FIC -3 ■ Ttie deviation? from sphericity expressed by the second and 

 (burth harmonic terms in the case of small pulsations • 



