ACCESSORIES AND APPLIANCES 
all that are worth anything will be out’ by 
the end of the twenty-first day. The incu- 
bator should not be opened while the 
chicks are hatching if it can be avoided. 
The light should be shut out of the peep- 
holes in the door. After the twenty-first 
day they should be removed to the brooder. 
The  incubator-room 
should be one in which 
the temperature does not 
fall much below 60° F. There should 
never be any artificial heat in the room. 
A well-ventilated cellar or dug-out that 
is not too damp is an ideal place for 
an incubator. See pages 139 to 142 for 
further information. 
The brooder should be 
fired up at least twelve 
hours before the chicks 
are put into it. The thermometer fas- 
tened to a block same as used in the incu- 
bator should be used. The bulb should 
be same height from bottom of brooder 
as it was from.the bottom of the tray in 
the incubator. Raise the temperature to 
90° F., and adjust the regulator so that 
the damper will just start to rise. Watch 
it closely for a few hours, and if the tem- 
123 
The Incubator- 
room 
Running the 
Brooder 
