904.] 



Table 



Estimated 

 approxte 

 thickness. 



Hired with iht present water-level. 



Feet. 

 3 Tcha - 



fCh 

 Various. I Gu- 

 Bo 



4 to 10 



[To face p. 272. 



G i 

 [ Isl 



Same 



o + 100 



? + 650-> 



12 



90 



15 



20 



80 



Horn 



-0 

 - 



4-405- 





 



-> 



Mon 





Mail 2 



500 



Boz ' h5 

 MitJ 

 Dohi 





4-130 







- 120 



- -> 



- •» 



<--120--> 



h-3 a 



«--20!)^ 



[a 



4-800 



(?)200 Hori 



(?) 100 



Ker|L500 



(Ga 

 |Tc 

 3000 ^ K«*arshea 



| Sa 



2000 



Mi 



Y< 



Si 



Seri 

 Den 



(?) 



hipelago 



(?) 



