336 M. JEFFERSON LATERAL EROSIOX OX 3.IICHIGAX RIVKRI^ 



1904,* giving the facts and our inference. Of course the test of such a 

 theory was to examine other streams flowing in other directions. This 

 has now been done. The Michigan Geological Survey — Dr A. C. Lane, 

 Director — has borne the expense of transportation incurred in the course 

 of the work, the results being published here with Doctor Lane's per- 

 mission. 



There is certainly system in the behavior of the rivers examined, but 

 the effect can not be ascril:)ed to rotational deflection. It seems rather to 

 point to secular tilting of the land. 



Figure 2. — Rivers described in this I'apei: 



The rivers studied are the Eouge, Rattle run, Huron, Eaisin — all in the 

 old basin of lake Maumee and drawing their waters from the morainic 

 country to the northwest— and the Paw Paw, in an old glacial drainage 

 line on the western border of the state. All are shown on the map. 



EivER Eouge 



The river Eouge enters the Detroit about 6 miles below the city of 

 Detroit, taking its name from the "yellow," muddy color of its water. 

 At Dearborn, about 8 miles from the mouth, the lower Eouge enters, and 



* Pago IDO. ■ 



