FIGURE 



SECTION 





C-13 



G-1 



SHALLOW 



C-14 



G-2 



DEEP 



C-15 



H-1 



SHALLOW 



C-16 



H-2 



DEEP 



C-17 



1-1 



SHALLOW 



C-18 



1-2 



DEEP 



.05 .10 .15 .20 .25 .30 .35 .05 .10 .15 .20 .25 .30 .35 .05 .10 .15 .20 .25 .30 .35 



FREQUENCY, CPM 



49 



