o 



134 The Hen at Work 



might be impaired. A temperature of 103, 104, 

 105° is too high and will do great harm. The 

 heat may rise for a short time, however, to no' 

 and not kill strong germs. 



White eggs and brown eggs need the same degree 

 of heat. The eggs of fowls, other than hens, 

 require varying periods for incubation, and as all 

 lend themselves to the artificial mothers as well 

 as the hen's egg, a list is given for guidance in 

 handling the hatch. 



Variety Days 



Pigeon 17 



Hen 21 



Pheasant 24 



Duck 28 



Peafowl 28 



Guinea Hen 28 



Turkey 28 



Goose 30 



' Muscovy Duck 35 



Swan 35 



Of course there wiU be variations from these 

 figures according to the average heat in the hatch- 

 ing chamber, and the season of the year, as well as 

 the condition of the eggs, when entered. In look- 



