FOREST TREES AND FOREST SCENERY 
the regions naturally penetrate into one 
another and overlap, on account of the 
manner in which forests have extended 
their bounds. 
In the basin of the Great Lakes, 
where the glaciers of a recent geologi- 
cal age have prepared a light, loose, 
gravelly or sandy soil, the white pine 
belt extends through the States of Min- 
nesota, Wisconsin, and Michigan, and 
penetrates into portions of Pennsyl- 
vania, New York, and New England. 
Once covered with dense tall forests 
of white pine, interspersed in places 
with other northern conifers, or broken 
by smaller areas of broadleaf forests, 
the white pine belt has now yielded 
to us its richest treasures. The exact- 
ing demands of our modern artificial 
civilization have drawn ceaselessly upon 
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