ProC. R.I.A., Vol. IV 



Plate VI. 



MAP ILLUSTRATING 



IBUTION OF HEAT 



OVER 



RITISH ISLANDS, 



I. HEN2SIBSSY, F.B.S. 



/'"'V^. 



N.B.— The fij 

 Temperatures ( Fare 

 to each Isothermal 



FORSTcR i CO.. tiTH. aUbLIN. 



