THE UNSEEN WORLD 



265 



institution. Tlie series of mice-like and rat-like creatures, 

 moles, voles, squirrels and others, arboreal, terrestrial 

 and aquatic, which they had amassed, was a revelation 

 to us of the infinite variety of this unseen world on the 

 minor scale. 



WHITE-BEAEDED GNU. 

 Outside span of horns, 28^ ins. 



