266 



MAPS SHOWING EXTKEME OF HEAT 



[Ch. XII. 



pressions of 1,000 feet would submerge large areas of the 

 existing land, but fifteen times as much movement would be 

 required to convert such land into an ocean of average depth, 



Maps showing the position of Land and Sea which might produce the Extremes 



of Heat and Cold in the Climates of the Globe. 



90 



Fig. 14. 



Extreme of Heat 



Eig. 15- 



Extreme of Cold. 



Observations. — These maps are intended to show that continents and islands 

 having the same shape and relative dimensions as those now existing, might be 

 placed so as to occupy either the equatorial or polar regions. 



In fig. 14, scarcely any of the land extends from the Equator towards the poles 

 beyond the 30th parallel of latitude; and in fig. 15, a very small proportion of it 

 extends from the poles towards the Equator beyond the 40th parallel of latitude. 





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