MISCHIEF MAKERS 351 



"Perhaps, daughter, you will write the list on the 

 blackboard for us, so that we shall see the connection 

 more plainly. There are sixty or seventy North Ameri- 

 can species of Tree and Ground Squirrels, but if I tell 

 you of seven or eight, besides the Woodchuck and 

 Prairie Dog, which you already know, it will be as 

 much as you can remember." 



Tree Squirrels. 



Medium-sized ears. Cheeks with inside pouches for carrying 

 food. Clawed feet suitable for climbing. Plumy tails. 



Here belong, beginning with the smallest, the Flying, lied. 

 Gray, and Fox Squii-rels. 



Ground Squirrels. 



Smaller, with cheek pouches, living in ground, but spending 

 some time in the trees. The best known of this group is the Chip- 

 munk. 



Next come the heavy, ground burrowers, the Prairie Dog and 

 Woodchuck, whom certainly nobody would ever accuse of trying 

 to climb trees, and tlien follow two Spermophiles, the mischievous 

 Ground Squirrels (so called) of the plains, who seem to bear a 

 resemblance to both the tree and ground varieties, some having 

 large and others small tails. 



" You know something about our Common Squirrels, 

 Rap ; suppose you tell us what you have noticed," said 

 the Doctor, " and I will help you over hard places." 



" I've watched Squirrels a good deal, but I shouldn't 

 like to say that I know them," said Rap, hesitating; 

 "for when you think you've seen all their ways, you 

 find you've only just begun. There are plenty of 

 Squirrels hereabout, and they seem to live in a great 

 many different places. The Gray Squirrels and the Fly- 



