1/ P Y ^^" tour-digil numberi m the column on the l«ft give the latitude ond longitude of the 

 1^ ^ ' loutheost corner of eoch one degree-quodrongle. Each one-degree quodrongle is divided 

 into 30-minute quadrongles, numbered Oi m the diogrom to the right. The columns of th*s« tables 

 give; A- minimum temperature, B-monimum temperoture, C ' number of yeori, D - number of days. 



DEPTH ZONE 



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