72 PROFITS IN POULTRY. 
bringing two boards together on a line with the tube, 
each having a crescent cut into them thus ( ). Be sure 
and fasten up the compartments by nailing them to- 
gether in’such a manner that no sawdust can get in the 
egg-drawer, and be c.:reful to drive no nails into the egg- 
drawer when fastening the three compartments. As the 
tank should be covered with wood, it is best to fasten 
Fig. 45,—SkCTION OF INCUBATOR. 
the three parts together before making the outer box 
which holds the sawdust, by nailing upright strips 
closely together, fastening the top end to the wood sur- 
rounding the tank, and the bottom ends to the sides of 
vhe ventilator. We show in Fig. 45 a sectional view of 
the incubator. 
DIRECTIONS, 
To give the directions plainly, in order to avoid com- 
pelling our readers to write us, we will repeat them, and 
be #8 precise as possible: 
The incubator should be filled with boiling water. It 
will take a large quantity, Lut cne> fil'ed it will remain 
so. Let it remain shut up for twenty-four hou:s, in 
order to allow the heat to go all through it. Always 
