How large should the air cell in the end of the egg be on the 5th, the 10th and I5th days of incubation? Print E-mail

Answer:

In the average-sized egg, about the size of a 25-cent piece on the fifth, nearly as large as a half dollar on the tenth and a trifle larger than a half dollar on the fifteenth, or about seven eighths of an inch, one and one-eighth inches and one and one-quarter inches.