348 WINTERING. 
To cool the air of the cellar, ice may be brought in and 
allowed to melt slowly over a tub. 
The Apiarist must guard against cold, also, but in winter- 
ing a large number of colonies, the heat which they gener- 
ate will usually keep the cellar quite warm in the coldest 
weather. In our experience, we have had to keep the 
cellar windows open, often, in cold weather. 
649. To allow cold air to enter without giving light, we 
have devised cellar blinds (figs.110 and 111). When the 
{ieee 
Fig. 111. 
CELLAR BLIND IN PLACE. 
window, inside, is raised, a wire-cloth frame is put in its 
place to keep mice out, and there ig a slide on the inside 
of the shutter which can be used to give more or less air as 
the case requires. Besides, the windows of our bee-cellar 
are made with double pancs, to exclude cold or heat more 
