^ " eo5V^^(a-r\a/L:) * 



In these techniques, fluctuations of the ocean bottom due to micro- 

 seisms, cataclysxns, etc., have not been considered. The results shown 

 appear to be excellent, but it remains to be seen how the theory will 

 stand after further tests, A large quantity of data is presently being 

 taken and comparative analyses between surface waves and associated 

 pressure fluctuations t-iill be carried out. 



29 



