BEAVERS IX THE SOCIETY S GARDEXS. 



101 



at the end was a ventilator. At all events no attempt hnd been 

 made to enlarge it for exit or entry, and the part of the bvirrow 

 it opened into was a comparatively lai'ge chamber, wide enough 

 for tlie beavers to turn about in and deep enough for them to 

 immerse themselves under the water. The narrower part of the 



Text-fio'ure 1. 



Plan of the old enclosure for Beavers, sliovving the work done by the 

 animals. 



burrow was from 1| to 2 ft. wide and about 2 ft. deep from the 

 surface of the ground, the soil of its roof being only a few inches 

 thick. It was rather more than half full of water, continuous 

 with that of the pool at the entrance, which we subsequently 

 fouiid proceeded from a burst underground pipe. 



