KPY The tour d.g.l numbers m ihe column on the left g.ve the lot.tyde ond longitude o( fhe 

 t I southeast corner of eoch one degree - quodrongle Eoch one-degree quodroogle iS divided 

 into 30-minute quodrongles, numbered as m the diagram to fhe right The columns of lh«se tobies 

 give: A- minimum lemperoture, B-ma«imum temperature, C - number of years. D ■ number of days 



DEPTH ZONE 



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