20 Drreotor’s Report oF THE 
part occupied by a hot-water heater and coal. From the incubator 
room two eight-inch ventilating pipes run to the loft. The first 
floor is used for a work room and one part as a sleeping room for 
the poultry man. The loft is used for storage. 
Towards the end of the brooder wing are four pens in which can 
be used separate lamp brooders. A row of eight brooders is 
heated by pipes of hot water. Back of these brooders is a sunken 
passage-way connected with the heater room of the basement. - 
This is covered by a trap floor which may be hooked back when 
desired. When working in this passage-way the brooders are at 
the height of an ordinary work bench. Four of the brooding 
chambers are 2 ft. by 3 ft. and four are 2 ft. by 4 ft. on the floor. 
Four flow pipes of hot water run through the brooders imme- 
' diately over the chicks and two larger return pipes run underneath 
the tight floor. The brooders are separated by air chambers or 
boxes from which fresh air is admitted at each end of the brooder 
chamber through screened covered openings. Doors from the air 
box open into the passage-way so that pans of hot water to supply 
moisture may be placed on the return pipes. 
These air boxes are not separated from the long inclosed space 
under the brooders through which the return pipe runs. A dam- 
per admits fresh air from the passage-way to the space under each 
brooder so that a current of air may pass under the floor of the 
brooder over the return pipes, then into the air box over the 
moisture pans and enter the brooding chamber near the flow pipes. 
The front of the brooding chamber is open, the floor being level 
with the floor of the pen, but can be closed when desired. by a 
door of wire netting. The rear wall, partly of glass, is securely 
attached to the cover which is hinged and lifts against the parti- 
tion. The brooder covers are strong so that collectively they form 
araised walk. Wire netting doors open into each brooder peu. 
The wing at the left contains a feed room and four pens for 
breeding stock. This wing has a tight-board ceiling. Trap doors 
open into the loft and ventilator pipes extend through the roof. 
A pipe connected with the water heater runs through this wing 
