(3 THE ILLINOIS GLACIAL LOBE. 



Minnesota and Wisconsin are laid out from the Fourth Principal Meridian, 

 the townships being numbered from the State line of Illinois and Wisconsin 

 northward to the international boundary in Minnesota and Wisconsin, and 

 to the line of Michigan and Wisconsin in eastern Wisconsin. 



The State of Michigan is laid out from the Michigan meridian, which 

 leads from Sault Ste. Marie south to the Ohio State line. The base line 

 follows the parallel 42° 30'. The numbering of townships north from the 

 base line harmonizes with those laid out from the Fourth Principal Meridian 

 in Wisconsin and Minnesota. The ranges are numbered both to the east 

 and to the west of the principal meridian as far as the limits of the State. 



In each township there are 36 ' sections, numbered back and forth in 

 tiers of six, the numbering beginning at the northeast and terminating at 

 the southeast corner of the township. 



