Lansing Pleistocene Geology. — IViJiclicll. 
269 
ever may have been the earher history of their relations. Such 
present adjustment, however, has no necessary causal relation 
to the past history and relations of the two streams. It is but 
the expression of the present moment, and, in this case, bears 
no significant relation, in the opinion of the writer, either to 
the past history of the streams or to the question under investi- 
gation. These streams, as it appears to the writer, have had a 
long history, with mutual adjustment relations, going back to 
a remote point in Pleistocene time. 
3. The statement made in No. 3 may be true, but it has no 
bearing on the question in hand. It is, however, open to grave 
doubts, since it requires work of the INIissouri river since Wis- 
consin glaciation which is in excess of what is Icnown of river 
action on stratified limestones within the area of Wisconsin 
glaciation. This need not be discussed because of its non-im- 
portance, as will appear. 
aEOLOGy 
OF TH£ CON CPiN N ON F A R tfl 
W/ifll Man»an Drift on Iti. ap>l«nc(» 
TltmitL 
"iy Condon ncirf 
Anitl'' 
"^• 
CJ 
SC A 1_ E 
OnaHo.\\ Inch =. 100 f«et 
i^^ 
Fig. 2. Map oi' a part of the Concaiinoii Faiiii. 
