y in single years, but, takinglong periods, it appears to be quite uniform for thesame region. The rate varies according to the exposureof the coast to the prevailing winds, and according tothe hardness of the material. For shores of boulderdrift, exposed to the full action of the waves, it… … BS ?^TDE-|3ni Fig. 3. Canada shore opposite, it has been about the same.Eev. Thomas Hurlbut found that on Lake Huron itvaried in different places from one to twelve feet,—anaverage of six feet per annum. A civil engineer atGoderich, on the same shore, found the erosion in frontof that town to…
Archaeology · Human beings -- Origin
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