Depth Minimimi Period 



30 feet 3 seconds 



90 feet seconds 



1^0 feet 7 seconds 



These values determine TbTv^ox- ^""^ consequently f^* from figure 9 as 

 given in table IIIo 



Table III 

 ^ f Determined for Minimum "T 



3 »333 1.2U 



5 o200 1.18 



7 .lli3 1.13 



The ratios of the number of wave maxima to the number of waves were 

 determined from the original records mentioned above, and the results 

 are indicated as follows: 



Depth No. of Records Average Ratio 



30 feet 13 1.30 



90 feet 12 1.13 



150 feet 8 1.09 



It is interesting to note 'that for a purelj^ wind-generated sea, one 

 in which all heights and periods are possible, 



26 



