MAP SHOWING SL'MMIvR AND WINTKR HOMIiS OF TIIIv BIRD THAT HATKS DARKNKSS 



The summer home of the Arctic torn is along the Arctic coast of North America : its 

 winter home within tlie Antarctic Circle 11,000 miles away. During ciRlit montlis of the year 

 the bird hves where the sun does not ro below the horizon. The track of the tern in its 

 roimd jcuirney of 22,O0O miles is unknown (see page 190). 



191 



