•jo THE HOME POULTRY BOOK 



a dead germ will be known because it is not clear like 

 an infertile one, and yet has no blood lines when 

 the seventh day test is made. These eggs should 

 be removed and thrown away. The clear eggs may 

 be saved and boiled hard for the newly hatched 

 chicks. If a considerable number of eggs are tested 

 out, eggs from under hens set at the time the ma- 

 chine was started, may be substituted. It is always 

 well to test the eggs under sitting hens in the same 

 way. Then, if the fertile eggs are not desired to 

 replenish a machine, it may be possible to give the 

 eggs from two hens to one, so releasing one hen. 



A workable tester may be made at home with the 

 aid of a breakfast food box. The top should be 

 removed and the sides cut away so that the end may 

 be made to closely cover the face, shutting out all 

 light. Then a hole slightly smaller than an egg may 

 be made at the opposite end. If this little device 

 is held toward a strong light and an egg placed 

 closely against the opening, the testing can be done 

 very quickly and easily. 



Another way of testing eggs where there are a 

 considerable number is recommended. A light 

 board is fitted over a window facing the south and 

 a hole made in the board. Then, when the sun is 



