BEAVER LODGES AND BURROWS. 



147 



year, while going again to Grass Lake dam for the 

 purpose of obtaining a photograph of the same, I re- 

 gretted the destruction of the fodge, of which a repre- 

 sentation was not less desirable than of the dam. On 

 reaching the lake, I was both surprised and gratified 

 to find that the lodge had been completely restored 

 by the beavers; and the engraving (Plate XIIL) shows 

 the lodge as it appeared after it had once been par- 

 tially destroyed, and again repaired, in the manner 

 stated. 



Fig. 10. 





Island Lodge. Side view. 



In this figure of the lodge (Fig. 10), which was 

 taken from the island, its long side is shown, together 

 with the moat by which it is surrounded. The two 

 engravings together represent a beaver lodge so faith- 

 fully and completely as to render unnecessary any 

 further description of their external appearance. Both 

 engravings were made from photographs of the orig- 

 inal. 



The number of lodges upon the largest ponds rarely 

 exceeds four. In some instances six and eight have 

 been found. Upon Grass Lake, as before stated, there 



