1884.] Vestiges of Glacial Man in Minnesota. 599 
In view of the circumstances cited, it was finally concluded 
that the quartzes must have been artificially transported to their 
actual position, perhaps in fragments, perhaps in masses which 
were afterward broken into fragments. For a period of about 
four years the quartzes were largely augmented in number at 
every succeeding freshet, during which they were washed out of 
the inhuming sand of the roadway by descending drainage. 
Their immense and continually increasing quantity finally seemed 
to warrant the belief that they had resulted from systematic oper- 
ations of some sort, once conducted, for unknown purposes, upon 
that particular spot. A portion of the studied specimens subse- 
E yielded evidence of having received shape from human 
The theory of neolithic origin was, from the beginning, beset 
with embarrassments. Certain incongruous developments be- 
came increasingly perplexing with the advance of investigation. 
The spot appeared to be peculiarly unfitted by nature for a 
base of quartz-working operations. It was unintelligible, for 
example, why an important industry of this sort should have 
been established at so great a distance from quartz boulders and 
quartz-bearing rock, especially as convenient plains occur about 
nearest exposures of this mineral. Again, why should 
= a manufactory have been set up upon a steep hill-side 
bing its approaches of such a character that all the mate- 
mal to be handled, as also the implements fashioned, would 
to be transported to and fro, up and down a consider- 
| ok acclivity? Above all, why should this workshop have 
æn relegated to the bottom of a natural drain, the solid con- 
S of which were necessarily overwhelmed, or swept away 
orad at every considerable rainfall and thaw of the year? As 
was stration of the superficial disturbance to which the place 
“S Subject, I may mention that at the close of a long but by no 
~ > exceptionally protracted rain-storm, I once collected from 
| pia by actual count, about one thousand quartzes, all newly 
p, Cut of the soil at that one time. Of this I was certain, as 
Thad Previous] : f an 
‘Size Within v; y cleared the ground of every quartz piece of any 
oT ee View. 
: cc. fact wholly irreconcilable with the hypothesis of neolithic 
edges ow the absence of quartzes from the surfaces at the superior 
f the notch, and along the terrace-plain adjoining. It was 
