Money in Broilers and Squabs. 25 



hatch is completed, and note all changes and experiences. This 

 will be furnishing you with valuable information ior subsequent 

 hatches. 



Incubators can be successful in a room above ground providing 

 the temperature of the room does not readily change. 



Fifty per cent, is the average hatch; and an average of fifty 

 per cent, of chicks hatched are marketed. 



In cooling eggs, place a thermometer on them after they have 

 been turned, and when 85 degrees are reached, return the tray to 

 the machine. 



It is not always the fault of the incubator when the hatch is 

 poor. Sometimes the eggs are to blame, but generally "the man 

 behind the incubator" is at the bottom of the trouble. 



Bear in mind that the dryer the air, the more rapid is evapora- 

 tion. 



Never have the flame ot the lamp higher than is strictly neces- 

 sary. 



The eggs themselves throw off very little heat for the first two 

 weeks. 



A high temperature during the early part of the hatch is apt to 

 prove fatal. A temperature of no degrees on the eleventh day will 

 not necessarily kill the hatch, unless it is allowed to continue too 

 long. 



Rankin says that if no more water surface is exposed in warm 

 weather than in cold, not more than one-half the moisture is se- 

 cured. 



After removing the infertile eggs from the machine, spread out 

 the fertile ones so that they occupy about the same relative position 

 to one another. 



The greatest excess of heat for a short period, says Cyphers, 

 can probably be withstood, after the sixteenth day, when the 

 growth of the allantois is completed. 



C. E. Chapman, in "Rural New-Yorker," says enough extra 

 eggs can be put on the trays to fill out the trays after the infertile 

 ones are removed. He marked them "extras," and found that plac- 

 ing them on top of the others for five days did no injury. This gives 

 the full capacity for the whole hatch. If that method will hold good, 

 it is valuable, but we very much doubt it. However, it may be 

 worthy a trial by one of an experimental turn. 



A. T- Hallock says it will not pay to overcharge the machine, 

 as recommended by Mr. Chapman, as the top eggs will be a degree 

 or more hotter than the lower ones, which will be detrimental to 

 the hatch. 



Cyphers, in his book on incubation, says he finds the temper- 

 ature of the eggs will average up, at the end of the first day of in- 

 cubation, at about 97 >4 degrees ; at the end of the second day, gS^ 

 degrees ;'and from this time on will gain uniformly one-fourth de- 

 eree a day until the end of the eleventh day, having a temperature 

 at that time of about ioo>4 degrees. During the next two days the 



