INCUBATION 



171 



mometer recedes from sight. This is easily ac- 

 counted for by the fact that the eggs are cold, and 

 it will require several hours before the thermometer 

 will again register 102 degrees. The eggs should 

 not be disturbed until the third day. The only 

 work required is cleaning and filling the lamp each 

 evening. On the evening of the third day the eggs 

 should be turned and cooled for five minutes. Be 

 sure there is no grease on the " ands when turning 

 the eggs. After the third day turn and cool the 

 eggs morning and evening, gradually increasing 

 the amount of cooling as the hatch progresses. 



COLONY HOUSES COMBINED 



In winter colony houses brought end to end'thus may 

 serve for general coop. Building paper tacked over ends. 



TESTING THE EGGS 



The eggs should be tested on the seventh and 

 fifteenth days. This may be done during the day 

 if a dark room is available; if not, at night. The 

 testing of the eggs is verj^ eas)^ and after a little 

 practice one should experience no difficulty in dis- 

 tinguishing the good from the bad. When held to 

 the light, a fertile egg can be distinguished by a 



