Wisconsin should be supplemented by a very considerable amount of
corroborative testimony before being accepted as proof positive of the
acquaintance of the Mound-Builders with the mastodon.

As regards likeness to the mastodon, the pipes before alluded to, copies
of which as given in Barber's articles on Mound Pipes in American
Naturalist for April, 1882, Figs. 17 and 18, are here presented, while
not entirely above criticism, are much nearer what they have been
supposed to be than the mound just mentioned.

[Illustration: Fig. 28.--Elephant Pipe, Iowa]

[Illustration: Fig. 29.--Elephant Pipe, Iowa.]

Of the two, figure 29 is certainly the most natural in appearance, but,
if the pipes are intentional imitations of any animal, neither can be
regarded as having been intended for any other than the mastodon. Yet,
as pointed out by Barber and others, it is certainly surprising that if
intended for mastodons no attempt was made to indicate the tusks, which
with the trunk constitute the most marked external peculiarities of all
the elephant kind. The tusks, too, as affording that most important
product in primitive industries, ivory, would naturally be the one
peculiarity of all others which the ancient artist would have relied
upon to fix the identity of the animal. It is also remarkable that in
neither of these pipes is the tail indicated, although a glance at the
other sculptures will show that in the full-length figures this member
is invariably shown. In respect to these omissions, the pipes from Iowa
are strikingly suggestive of the Elephant Mound of Wisconsin, with the
peculiarities of which the sculptor, whether ancient or modern, might
almost be supposed to have been acquainted. It certainly must be looked