Ohio History Journal

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As yet no implements have been found in Ohio which can

certainly be ascribed to the glacial age. The hope that we

may yet discover pre-glacial instruments in Ohio, as we have

discovered pre-glacial wood, is, however, a sufficient justifi-

cation of this paper, if it shall succeed first in making clear the

relation of the glacial period to archaeological discoveries in

other portions of the world; and if, in the second place, it

shall call the attention of local observers in different parts of

the State to the class of implements likely to be found within

the limits of the State, and to the localities where special

investigations should be inaugurated; and third, if it shall

show the relations of glacial investigations in this region to

the question of glacial chronology, and so of the age of the

implements found elsewhere.

First, the relation in general. The general facts as to the

occurrence of a glacial period are so well known that I need

only allude to them. The evidence is conclusive that, at a

comparatively recent period, the northern portions of Europe

and America were covered with a vast mass of slowly moving

ice, pressing down from the direction of the north pole

towards the warmer latitudes. The origin of this ice (like

that of the glaciers still remaining in the Alps and other

mountain ranges, and still covering a large part of Green-

land), was doubtless in the continued accumulation of snow

over the glaciated region in excess of the melting power of

the summer sun. This implies a climate both cool and moist.

Into the speculations concerning the changed condition in

the meteorological forces, I need not enter.

The extent of the region over which this ice sheet spread

is now pretty accurately known. In the old world the

glacial covering extended over nearly the whole of the British

1A paper read before the Ohio State Archaeological and Historical Society

at the first annual meeting, February 18,1886