0. 



3. 



;y shale, 

 aid. 



rk shale, 

 nedium. 



ft. in. 







7 



12 



17 



55 



98 



ft. iu. 

 98 

 Yellow sui-face 

 clay, soft. 



Gravel, hard. 



Large stones, 

 very hard. 



Blue clay, 

 soft. 



Blue shaly 

 clay, 

 medium 

 hard. 



200 





3REGRANDE, TRINIDAD: 



p. 



I 

 I 



i 



i 



i 



