A SELF-SUPPORTING HOME 



the machine on the morning of the nineteenth 

 day, do not open the door again until the 

 twenty-second day. To a beginner, this is a 

 most difficult exercise of patience. More 

 chicks found dead in the shell are due to 



opening the door and taking out those newly 

 hatched, than to any other cause. This late 

 opening allows the moisture to escape just 

 when it is most necessary. 



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