LESSON THIRTY-TWO. 
INCUBATION AND BROODING, 
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CwAANAATKR WY EH 
. Hens for hatching. 
. Artificial incubation. 
. Incubator essentials. 
. Placing the incubator. 
. Eggs for hatching. 
. Trying out the machine. 
. Turning the eggs. 
Testing the eggs. 
Last days of hatch. 
Transferring to brooder. 
. First day in brooder. 
. First week in brooder. 
. From second to sixth week. 
. Hen-hatched chicks. 
. Sanitation. 
Note to the Teacher.—The purpose of this lesson is 
not to compare natural incubation with artificial incuba- 
tion, but rather to define the essential factors that have 
to do with the proper handling of incubators and brood- 
Certain fundamental principles are involved in all 
styles of incubators, and these should be understood as a 
first step in their successful operation. 
importance of cleanliness and sanitation in hatching 
chicks regardless of the method of hatching the eggs. 
340 
Make plain the 
