377 
Topographical Phenomena in Indiana. 
1884. ] 
upper end of these bars, consequently only the heaviest pebbles 
7) 
Sia / / 
Fic. 9. 
AN 
f 
FIG, 10. 
there; the next heaviest being dropped next farther 
and so on to the lower end where the bars always termi- 
are 
ova, ands 
