DISCOVERY REPORTS, VOL. IX 



PLATE VIII 



i i i i 1 1 i i i i i 



ABSENT 

 UP TO 3% 

 4% -10% 

 11% -14% 



LIMIT OF DBS N - 5 



65° 



I > i i i i i |-< 



45 



5d 



60 c 



i ' ' ' ' ■ i i i ' 



55 



DISTRIBUTION OF FINE GRAVEL, 1-5-2-4 mm. 



