424 JAMES WALTER GOLDTHWAIT 



5. It is inferred, from the apparently horizontal position of the 

 Algonquin and Nipissing planes in the southern parts of both the 

 Huron and Michigan basins, that no earth-movements have affected 

 this region since the earliest Algonquin stage, and that, if any deforma- 

 tions are now in progress in these two lake basins, they are hmited to 

 the more northerly portions. 



