the engravings show exactly how the eggs look in 

 the tester. 



To become an adept at testing eggs for hatching 

 one has only to use a good tester, his eyes and a 

 little judgment. Break in separate saucers (care- 

 fully) one which you suppose to be a good, strong, 

 fertile egg; one which seems to be fertile, but 



A STRONG FERTILE EGG, 



On the fifth or sixth day, as shown with a good tester. 



weak ; one that is doubtful that is, one which you 

 cannot decide whether it is fertile or unfertile, and 

 one that seems decidedly unfertile. Break one at 

 a time, and examine it carefully, making note of it. 

 This should be done on the fifth day, or at the first 

 test. 



A strong, fertile egg will, on the fifth day, (tem- 

 40 



