Hatching with Incubators 133 



conditions that it will hatch and bring forth a 

 strong, active chicken; and the simple, inexpensive 

 incubators of the present day prove how well the 

 problem has been solved. 



A careful record shows that the hen has a 

 temperature, after the hatch is well started, run- 

 ning at 104° and 105°. The heat of the eggs 

 beneath her is not so high, starting at about 98°, 

 at the end of the first day, and rising to 103° 

 at the end of the hatch. Long experience has 

 shown that the temperature of the incubator 

 should be held about one degree lower than that 

 of the sitting hen. 



If we stand the thermometer on a level with 

 the eggs, so that it does not touch them, and keep 

 the temperature at loi, 102, 103°, the result will 

 be satisfactory, and we shall be well pleased with 

 the hatch if other conditions are good. 



If anything happens and the thermometer 

 drops to 50° for a short time, we may get fair 

 results after all; but a temperature which fre- 

 quently dropped below ioi° would probably prove 

 fatal. 



A temperature one degree higher, 102, 103, 104, 

 would do no harm, but the vitality of the chicks 



