78 
ORDERS OF MAMMALS— GNAWING ANIMALS 
burrows. As elsewhere noted, they are often 
heard barking after they have gone in. 
“The burrow was opened the day after .bi- 
sulphide of carbon had been used for destroying 
the animals, and the material carrying the bi- 
sulphide was found at the bottom of the vertical 
serve to hold its numbers in check. The most in- 
veterate of these appear to be the coyote, badger, 
black-footed ferret and rattlesnake.” 
The Woodchuck, or Ground-“Hog,”‘ is tol- 
erated on the farms of New England because he 
is wise enough to live on clover and other grass. 
From Dr. C. Hart Merriam, “Yearbook,” Department of Agriculture, for 1901. 
part, just where the horizontal part turns off. 
Two dead animals were found, one in the hori- 
zontal part, the other in the nest, as indicated 
by the letter K in the diagram. 
“ The Prairie-Dog has several natural enemies 
which, when not interfered with by man, usually 
and let the vegetable gardens alone. In the East 
he is the only representative of the marmots. 
In form he is short and stout, and his flat head 
and beady, black eyes give him a surly look. He 
is not lively and cheerful in his habits, like a 
1 Mar-mo' ta mo'nax. 
