CULTURE OF FUR-BEARERS 261 
done the cement floor should be covered with a 
deep layer of earth. 
At one end of this enclosure should be built 
of strong, close meshed wire netting, a series 
of cages, resting on a tight wooden floor, each 
about 3 feet high, 8 or 10 feet long and about 
4 feet wide. These are for the use of the 
breeding females, one to each cage. In the 
front of each should be a door large enough to 
pass in and out a nesting-box about the size of 
a raisin-box, with a small hole for admittance 
of the animal, closed by a sliding door so that 
she may be shut in if desirable. 
The remainder of the enclosure should be 
divided in the middle by a fence of close wire 
netting, guarded from digging and climbing 
like the outer fence, forming two courts or 
yards for exercise, etc. A small low door will 
afford communication between these yards. 
Water must be supplied in abundance—run- 
ning water if possible. There should be a 
trough for each breeding-cage and a large 
swimming tank which may be accessible from 
both yards. The cost of such an outfit will 
