54 



GENERAL DISCUSSION OF CLAYS. 



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O OS CO -^ <N 



os 



<N 



Oi <N 50 <N TH 05 OS 



CO 



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8 







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lO CO TH 



co <N' TH 



OS 



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g 



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y, i co os o 





l> OS Tfri ic D O O 

 TH O CD CO <N QO - 



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U5 1O OS CO TH O <N 



O TH Tj< t- TH 00 O 

 ^ 10 TH IO O OS CO 



S 



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O ! 



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OS 1C 



Tj" CO 



1C CN <M 



t^^' I 



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1O 



tance 



su 

 rtz 

 par 



S, D 



a ^ 



^ oc 



rS > 



Q fl 



g 



"2 8 .* 

 fl 43 



III III! 



S 



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;N CO ^ J2 fl * fll 



1411.111 



