(Roc% (mountain T}7onbeif(anb 



In many things they are persistent. Once I 

 closed the hole that one had made in a place 

 where I did not want it. I filled the hole full of 

 earth. Inside of two hours it was reopened. 

 Then I pounded it full of gravel, but this was 

 dug out. I drove a stake into the hole. A new 

 hole was promptly made alongside the stake. 

 I poured this full of water. Presently out came 

 a wet and angry chipmunk. This daily drowning 

 out by water was continued for more than a 

 week before the chipmunk gave it up and opened 

 a hole about thirty feet distant. 



For eight years I kept track of a chipmunk 

 by my cabin. She lived in a long, crooked under- 

 ground hole, or tunnel, which must have had a 

 total length of nearly one hundred feet. It ex- 

 tended in a semicircle and could be entered at 

 three or four places through holes that opened 

 upon the surface. Each of these entrance holes 

 was partly concealed in a clump of grass by a 

 cluster of plants or a shrub. 



I have many times examined the under- 

 ground works of the chipmunk. Some of these 

 examinations were made by digging, and others 



280 



