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HISTORY OF ERIE COUNTY 31
via the Maumee and Wabash, and later via the Mohawk Valley to the
Hudson, and when it was all melted aAvay it resumed its ancient course
doAvn the St. LaAvrence.
"The sand and pebbles on the beach of Lake Erie are but the groundup
boulders borne from Canadian sources, and it is a fine pastime to sit
doAvn on its shores and classify the many kinds and try to place their
home source. Students have taken samples to Canada and found the
very ledges from which they were plucked by ice miles deep sliding over
these plutonic rocks. One of the noted boulders was found in Sandusky,
polished on tAA'o sides, found to have an injection of lava trap, and is
placed beside the entrance to the Geological Museum of Ann Arbor
College, Michigan, by one of Ohio's graduates, class of 1909, W. II.
Ransom. The other side of the entrance is a large conglomerate glacial
stone, containing pebbles of pure copper glacier-brought from Lake
Superior.
"Another Avas found south of Castalia, Avas saAved in two, polished,
shoAving in a black granite three separate intrusions of trap rock of different
colors and ages; one half is in the High School .Museum, the other
in the museum of the Ohio State University, and are both wonders. The
incst regularly formed granite rock knoAvn is over the grave of General
Lcggett, just outside of the mausoleum of President Garfield, in LakevicAv
Cemetery, Cleveland, Ohio.
"In Erie County there are literally tens of thousands of these
Canadian wanderers, brought here at no greater average speed than
tAventy-five feet a year, enclosed in the grandly moving ice sheet, Avhich
in many places pushed up moraine hills, as in LeAAanee County, Michigan,
of the height of tAvo or three hundred feet, made up wholly of rock* from
as large as a hay stack doAvn to the finest sand. Some pusli, some business,
when it once got at its Avork of a hundred thousand years, as I believe.
It had time to cut the 'Cincinnati Arch 1 limestone and distribute
it evenly over Western Ohio and make the most fruitful soil in
the world, celebrated for its perfect crops of wheat—the motive poAver
of the world—its bread. Time and space fails me to tell of the celebrated
boulders I have met and shaken hands with in Erie County, Ohio."