BEAVER LODGES AND BURROWS. 



163 



in ground dimensions, and about ten inches high. The 

 roof of the latter came near to the surface, and was 

 formed chiefly of the roots of the clump of trees under 



Fig. 18. 



Ground Plan of Bun-ow ou Beaver Canal. 



which it was excavated. Water stood in the passage- 

 way nearly to the chamber. It is a fine specimen of 

 a burrow. 



Fig. 19. 



Beaver Burrow. Ground Plan. 



Burrows are often found excavated under fallen 

 trees when lying near the pond. The above figure 

 (Fig. 19) shows one of this description near dam 

 No. 14. A canal about ten feet long and from three 



