102 



POULTRY PRODUCTION 



allowing them to become completely cool. Poultry keepers, 

 however, are under the necessity of holding hatching eggs 

 for a longer or shorter time, and are confronted with the 

 very practical question of how to Iiandle them during the 

 period of suspended development with the least possible 

 damage to their vitality and hatching jiower. They should 

 be collected several times a day during February and ?*Iarch 

 to prevent chilling. 



Table XXVII. — Kelation of Timb of IIoLurN'o Hatchini! Eggs to 

 Their Hatching Power. Summary of 189 Ixcubator liEcoiins— 

 1914 TO 1919. (Data of Wmte.) 



