

















^2 







-V/V^/!j. 





















^ 





V 















-^1 



> ^(i 



& 



^v 



H.^" 



\ 







still waler 



V 7 



^'^^*5^*»^ 



-^J^, 









level 



\ 



^^^--"^ 













\FIGURE 119 



^^'=*^^ 



•^ 



'®?5S^ 



'^^SSS. 



*^^ 



FIGURE 79. 



Waves breaking 



seaward of 



a 



wa 



II 





p *p, 



still water 



level 



FIGURE 80. Pressure diagram for waves breaking 

 seaward of a wall 



in 



