1914 ] 
Jackson: Land Vektehrates of Ridgeway Bog 
23 
pillus, and Eutamias h. neglectus invade from the Roadside and 
Hillside Associations. 
6. The Roadside Association {Jig. G). The area included within 
the Roadside Association is limited; it occupies a narrow margin 
of a few feet on each side of the road; in jilaces (fig. 1, 6) it passes 
through the Cedar-Balsam-Hemlock Association, but for the 
most part it lies between this and the Hillside Association; for a 
Fig. 6. The Roadside Area, Showing at the Left the Border of the 
Hillside Association. 
short distance where the Cedar-Balsam-Hemlock Association 
narrows owing to its slow^ invasion of the Tamarack-Spruce Asso- 
ciation, the Roadside Association lies between them. Everywhere 
the soil of this association contains more or less sand — more 
where it adjoins the Hillside Association, less where it adjoins the 
Tamarack-Spruce Association; everywhere the soil is relatively 
dry, though probably no more than that of the hillside area. 
