Bull. 1078, U. S. Dept. of Agriculture. 



Plate V. 



Fig. I.— Timber Killed by Beavers. 



Part of a large area of spruce, tamarack, and white pine killed bv flooding. The water wa? raised 

 about 2 feet and the ensuing loss of timber was estimated at between S.5,000 and $6,000. Most of 

 this loss could have been prevented by lowering the water at the dam 1 to 2 feet, as illustrated 

 in text Figure 2 (p. 11), and at an expenditure for labor and materials of not more than $25. 



Fig. 2. — Railroad Culvert Screen Cut by Beavers. 



This culvert was repeatedly closed by the beavers and the water raised above the railroad. About 

 a ton of sticks and mud had been taken out, and an iron ladder was kept there for use of 

 the section crew, wlio removed the debris every few days. 



