New York Weather Bureau. 



409 



eastern coasts, while in the same manner the inflmence >ot the 

 ocean is extended well inland along the western coasts. During 

 the iwinter heat is lost from large land surfaces by radiation much 

 more rapidly than it is gained from the oblique rays of the sun, 

 and consequently in high latitudes regions of intense cold are 

 found (Within the continents. Over the oicean, on the other hand, 

 radiation proceeds slowly aiS compared with the rate on land sur- 

 faces, while vast quantities of heat are gained from equatorial 

 currents. 



In summer the increaised heat received from the sun is absorbed 

 more rapidly by land than by water, so that the thermal relation 

 between continents and oceans is the reverse of that which obtaina 

 in winter. 



The (result of these conditions, iso far as temperature is con- 

 cerned, is shown plainly in the following: 



TABLE 1. 

 Average Temperature in Degrees Fahrenheit. 



West Coast of America. 



station. 



San Francisco, Cal . 



Portland, Or 



Olympia, Wash 



Sitka, Alaska 



North 

 latitude. 



Deg. Min. 



37 48 



4,5 83 



47 37 



57 03 



Temperature. 



January. 



Degrees. 

 50 

 38 

 38 

 07 



July. 



Degrees. 

 60 

 68 

 63 

 54 



North Interior of America. 



St. Paul, Minn 



St. Vincent, Minn 



Fort Simpson, British America. 



Norfolk, Va 



Washington, D. C. 

 New York, N. Y... 



Boston, Mass 



Portland, Me 



East Coast of America. 



79 



77 

 74 

 71 

 69 



Toulouse, France 



Paris, France 



London, England 



Christiana, Norway . . . 

 Hammerfest, Finland 



West Coast of JEuroj^e. 



70 

 65 

 64 

 63 

 54 



