1913] COOPER—ISLE ROYALE 35 
QuapRAT 6 (fig. 13).—The conditions here as to shelter were 
similar to those of the last. The quadrat was located near the 
shore of Tobin’s Harbor in sec. 33, T. 67 N., R. 33 W. The small 
number and large size of the trees are noticeable, and also the entire 
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ZAIN VEN 
rad a 
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ples pecan Bite i 4 
Pic Vv 
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Stula alba Papyritera I 
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Populus tremuloides 6 
Fic. 13.—Quadrat 6, near Tobin’s Harbor; for explanation of symbols see fig. 6 
absence of young growth, in spite of the comparative lightness of 
the shade. These conditions were plainly due to the mat of ground 
hemlock which practically covered the quadrat. The ground 
hemlock therefore, rather than any tree species, dominates and 
