In spite of the timidity of beaver they sometimes select curiously public 

 places for their scene of operations. The dam shown in this picture is 

 alongside a railroad embankment over which trains passed at frequent 

 intervals. 



Beavers' attempt to improve on man's work. The log darn was built by 

 lumber men ; the beaver did not approve, so they placed a small dam 

 (shown near the rocks to the right of the centre), which held back the 

 water to their complete satisfaction. 



