82 VREDENBURG : RECENT ARTESIAN EXPERIMENTS IN INDIA, 



Section of Artesian Well-boring at Ellore — contd. 



Number 



of 

 stratum. 



Thickness 



of 

 stratum. 



Total depth 



from 

 ground-level. 



Description of strata. 





Feet. 



Feet. 





20 



10 



250 



White and red clay with nodules of laterite. 



21 



so 



260 



Yellow and grey hard stiff soil. 



22 



10 



270 



White sandy clay interspersed with large 

 shingles. 



23 



10 



280 



White and brown clay interspersed with minute 

 pebbles. 



=4 



10 



290 



Yellow clay. 



25 



13 



300 



Light grey sandy clay. 



26 



10 



310 



Yellow streaky clay. 



27 



9 



319 



Yellow clay, light yellow sandy clay. 



2S 



I 



320 



More or less pure sand, large grained. 



29 



10 



330 



Very hard stiff clay, yellow and white streaky 

 clay. 



30 



10 



340 



Decomposed rock and clay. Decomposed streaky 

 sandstone clay. White clay streaked yellow, 

 Yellow, white and red streaky clay. 



32 

 32 



10 

 10 



350 

 360 



Yellow and white clay. Yellow ■>. 



and white chalky clay. White 1 



clay. Purple and brown clay. > Resembling 

 Purple and yellow clay. Purple 1 chalk. 



and white clay. J 



33 

 3+ 

 35 

 36 



7 

 3 

 7 

 3 



367 

 3/0 

 377 

 3S0 



Crimson clay (decomposed laterite) ; yellow and 



purple clay. 

 Pink clay with some yellow and 



white purple clay. ) 

 Magenta and purple clay. Stiff!- Resembling 



clay and purple clay. S chalk. 

 Yellow clay mixed with grey. 



37 



4 



3S4 



Light pink clay mixed with sand. 



(7) The Vindhyans. 

 The Vindhyans, like the Gondwanas, consist largely of alternating 

 layers of sandstone and shales, in addition to which, however, there 

 ( 82 ) 



