KPY The four-digit numbe'j m the column on the left give the lolitode and longitude of the 

 ^ * soulheait corner of each one degree -quadrangle . Each one-degree quadrongle i\ divided 

 into 30-minute quadrangles, numbered os m the diagram to the right. The columni of these tables 

 give: A- minimum temperature, B- maximum temperoture, C- number of years, D- number of days. 



DEPTH ZONE 



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