68 SKKTCH OF THE HISTORY Or MAMMALIA. 



"^'fiisC 



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-Harvest Mouse. 



be observes, " as I was sitting at my writing-desk, and 

 the animal was playing about in the open part of its cage. 

 a large blue fly happened to buzz against the wires ; the 

 little creature, although at twice or thrice the distance 

 of her own length from it, sprang along the wires with 

 the greatest agility, and would certainly have seized it 

 had the space between the wires been sufficiently wide 



