170 PROFITABLE POULTRY PRODUCTION" 



ferior incubator ; on the other hand, an inexperi- 

 enced man may, through lack of knowledge make a 

 complete failure with even one of the best 

 machines. 



If the machine has just been purchased, it should 

 be removed from the crate and assembled, care 

 being exercised to follow the manufacturers' direc- 

 tions for putting the various parts together. In 

 choosing a room, select one that will allow for 

 ample ventilation without a direct draft on the 

 machine. Do not place the machine in front of a 

 window, as the direct rays of the sun will make it 

 difficult to control the temperature. A cellar that 

 can be ventilated and that is not too damp makes 

 an excellent place for the machine. 



For best results see that the machine is per- 

 fectly level ; otherwise it will not distribute the 

 heat evenly to all parts of the egg chamber. The 

 lamp should be cleaned and filled with a good grade 

 of kerosene, which will insure a steady flame and 

 no smoke. The lamp should be lighted and placed 

 in position, as it will require several hours to dry 

 and warm the woodwork thoroughly. When the 

 mercury in the thermometer registers lOO degrees, 

 it will be necessary to read the thermometer every 

 15 or 20 minutes in order to adjust the thumbscrew 

 on the regulator. When the thermometer registers 

 102 degrees adjust the thumbscrew so the tin disk 

 on the regulator arm will be just trembling on the 

 rise. The machine should be run for at least 24 

 hours before putting the eggs in. This will give 

 an opportunity to study the regulator and see that 

 the temperature remains steady. 



The eggs are now placed in the machine and one 

 must not be alarmed if the mercury in the ther- 



