4:60 Kindle — Niagara Domes of Northern Indiana. 



Even where true bedding seems obvious it is not always easy 

 to discover in the strata intrinsic evidence which will entirely 

 eliminate the possibility of false bedding. At a number of 

 localities highly inclined beds richly fossiliferous have been 

 observed in contact with barren or nearly barren beds where 

 the evidence of tilting seemed so clear as to require no special 

 comment but for the fact that the opposite opinion has been 

 held regarding them. The final test of the false bedding 



Fig. 1 . — Tilted beds near Kentland. 



hypothesis comes in applying it to particular cases. Does it 

 afford a satisfactory explanation of such examples as the fol- 

 lowing ? Near Delphi a bed fifteen feet or more in thickness 

 occurs, composed almost entirely of the shells of Conchidhim 

 laqueatum one to three inches in length, which is inclined at 

 an angle of 20°. While it is perhaps not impossible that such 

 a bed should occur in false bedded strata, it appears to the 

 writer highly improbable. In the case, however, of strata 

 having a dip of 70° or more, as shown in fig. 1, oblique bed- 

 ding cannot be considered even as a possible explanation. 

 The materials composing the beds, if piled in layers inclined 

 at such a high angle, could not retain their position. Deforma- 

 tion alone offers a satisfactory explanation of such dips. 



