IXpY ^^* (ourdigil numberi in the column on ihe left give the latlludd and longitude of the 

 1^ ^ ' southeast corner of each one degree-quodrongle Each one-degree quodrangle is divided 

 into 30-minule quodronglet, numbered as lo the dlogram to the right The columns of iheje tables 

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



DEPTH ZONE 



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