272 ARTHUR C. VEATCH 



making them 15 to 30 feet higher. This gives the valley of the 

 present (Fig. 9). 



Figure 9 is a diagrammatic representation of these earth oscil- 

 lations of the Ohio valley during the Lafayette part of the 

 Neocene and the Pleistocene, the Columbia submergence being 

 based on the supposed aqueous origin of the loess of this region. 

 Only the vertical movement is here represented as no data bear- 

 ing upon the time covered in each movement was collected. 



It should be noticed that this record of continental oscilla- 

 tion agrees very closely with the record of the Mississippi 

 embayment, as given by McGee. 1 



Arthur C. Veatch. 



Indiana University, 



Bloomington, Indiana. 



■U. S. Geol. Sur., 12th Ann. Rep., 1890, p. 429. 



