MAMMALS. I2 3 



rat, and that was in Norfolk, where I understand 

 it is on the increase. 



It is a curious thing that rats have only 



WATER-VOLE. 



within recent years found their way into Unst, 

 the most northern of the Shetland Islands, through 

 the wrecking of a ship, and that bats, frogs, and 

 toads are entirely unknown in any of the group. 



I love to sit and watch water-voles swim 

 across a sluggish river with pieces of grass in 

 their mouths, like little beavers; or sitting on 



