222 The Anierican Geologist. apiI], isos 
iiig all the o))servations and deductions relating to the sub- 
ject. 
1 will not quote from the writings of Miss Babbitt, save in so 
far as may be necessai-y to convey a clear notion of what she says 
upon vital points, and shall onl}' do this when the reference is 
essential in explaining the relations of her observations to my 
own. 
Besides the above mentioned investigations of professor Win- 
chell and Miss Babbitt, no work has been done upon the archeol- 
ogy of this region, although other writers, notably Mr. Warren 
Upham, professor Gr. F. Wright, and Mr. Henry W. Haynes, taking 
for granted the correctness of all the original observations and 
conclusions, have ventured to enlarge upon the material pub- 
lished. 
Professor Winchell revisited Little Falls at the period of Miss 
Babbitt's later investigations and accompanied her to the site of 
her finds. He did not attempt, however, on this occasion to do 
more than examine the surface phenomena at the "notch"' and, 
although not fully satisfied with the deductions of Miss Babbitt, 
did not enter into the further discussion of the subject. 
In returning from the copper mines of Isle Royale in June, 
1892, I paid a visit to Little Falls and had the great good fortune 
to be joined by professor Winchell, who identified for me the site 
of his original discoveries as well as that of the subsequent in- 
vestigations of Miss Babbitt. 
Before describing my work at the latter point I will sketch 
briefly the general archeologic features of the vicinit}- presenting 
the results of such observations as bear directly upon the ques- 
tions of the age and character of the flaked quartzes. The 3Iis- 
sissippi river in this part of its course flows in a somewhat sin- 
uous channel cut to a depth of from twent}' to forty feet through 
a glacial terrace. Until a few years ago the river descended in a 
succession of rapids through what is now Little Falls village. A 
dam twent}' feet in hight was built across the lower end of the 
rapid in 1888, and this has backed the water up for a consider 
able distance, drowning the banks to depths decreasing gradually. 
with the distance from the dam. The main terrace has a rather 
even surface which rises from ten to twenty feet above the level 
of the back water. A limited bench, a post-glacial flood plain, 
on the west side, is several feet lower. The place afl'ords an ideal 
