zone 40 in. at this point. 
QUADRAT 4 (fig. 21) was taken to include a portion 
oi the rock surface (fig. 29 ) f as well as the marginal tree 
growth. Here the soil was thin and dry, the ground sloping 
gently toward the south. Several small red pines ( Pinus 
resinosa ) represented the typical tree growth. They stood 
comparatively close, with small dead ones intermingled, 
amongst the red pines were a few small white pines and 
balsams. Aster macrophyllus L. formed a large proportion 
of the ground cover. Besides this were several other 
speoies already mentioned as typical of exposed portions 
of the ridge, such as Salix humulis , Vacoinium spp., Artemisia 
caudata . etc. 
QUADRAT 5 typified the zone of scrubby red oaks 
(fig. 32), a characteristic belt very often following the 
conifers. The oak growth consisted mostly of sprouts (up 
to 3 m. high) coming from old root crowns in very shallow 
soil. This quadrat came Just north of the crest, so that 
the surface sloped gently towards the north. The conditions, 
however, were still xerophytic, as indicated by the presence 
of such plants as Aralia hispida , Danthonia spioata , and 
large patches of ffunaria hygrometrica . There were also a 
few scattered seedlings of aspen, white birch and sugar 
maple. There were some evidences of burning on this 
