80 EGGS AND POULTRY 
the heat may be more at one end than at 
another. It should be in a cool, well venti- 
lated place, partly underground if possible, 
so the air will not be very dry. Test the 
thermometer with another of known accur- 
acy such as a physician’s, and if your ther- 
mometer varies one way or the other, note 
it. Light the lamp, turn the wick to a me- 
dium height, and let it burn for a day or 
until the thermometer registers 103 degrees, 
at which point set your thermostat. When 
you are sure this temperature is maintained 
you can set the eggs previously selected. 
Now, follow out the directions sent with 
the machine and pray for a good hatch, 
meanwhile being careful to do the following: 
Look at your thermometer each morning 
before opening the machine to turn the eggs. 
If the temperature is not right, make it so. 
Fill the lamp every morning and trim the 
wick. Turn the eggs and an hour after again 
look at thermometer to see whether the lamp 
has been turned too high or too low. Turn 
the eggs again at night. At other times 
leave the incubator alone. Be careful not to 
allow anything to set on top of the incubator 
where it might be pushed against the ther- 
mostat rod and thus result in the tempera- 
ture running up with disastrous results. 
