Fig. 452. — Map of Region about South End of Lake Michigan, and an In 



The Dune areas are dotted in. This territory really occupies a larger area about Lake Calumet and to 

 the purposes of this book. *This sign indicates the Tamarack bog. Electric lines are thus shown 



A few of the main automobile roads out of Chicago are shown by a single line . They are 



map correspond to the numbers on the inset map, which indicates how the city streets connect up with the ; 



