KC Y The four -digit numben m the column on the left give the latitude ond longitude of the 

 ^ ' loutheoit corner of each one degree-quodrongle. Each one-degree quodrongle it divided 

 into 30-fninute quadranglet, numbered oi m the d'ogrom to the right The columns of iheie tablet 



■num temperoture. 



lemperoture, C - 



Tiber of yean 



mber of doyl 



DEPTH ZONE 



35 



