THE MARKETS FOR WHOLE MILK 



47 



given territory could take place may be seen by a study of 

 the map in Figure 2, which shows the Detroit milk zone of 

 1915. This zone looks decidedly patchy on the map, that 



FIG. 2. The Detroit Milk Zone. From U. S. Dept. of Agr. Bui. 639. 



is, the milk seems to come mainly from certain neighbor- 

 hoods. Now a somewhat higher price relative to prices 

 for other farm produce would doubtless have induced 



