28 



incubation, and finished hatching with hens. Where eggs were finished 

 under hens from the nineteenth day of incubation, no improvement was 

 seen in the chickens. This was tried several times from several machines. 



Eggs incubated one week under hens and finished by incubators gave 

 fairly good chicks, but eggs started in incubators for a week and finished 

 by the hen show practically no improvement over the eggs hatched for 

 the whole period in the machine. 



This work appeared to indicate that the first portion of the hatch is 

 a very critical time, and every care should be given at this period. 



Table VIII. 



Where Hatched. 



1905 Cyphers 



Open Bottom Prairie State . 



Model 



Cortland 



Hens 



Totals. 



Percentage dead in two weeks' 

 brooding 



No. 1, 1907 Prairie State. 



9 it u n 



<< 



3, 



Climax . 

 Hearson 



Totals 



Artificial Brooding. 



Number of 



chicks 

 brooded. 



Percentage dead in four weeks' 

 brooding 



29 

 24 

 20 

 17 

 17 



107 



20 

 20 

 22 

 25 

 20 

 3 



110 



Number of 



chicks 

 that died. 



Natural Brooding. 



6 

 5 



7 

 7 



o 



25 



21.5 



2 

 3 

 2 

 3 

 3 

 



13 



11.8 



Number of 



chicks 



brooded. 



36 



5 



30 



34 



46 



151 



14 

 20 

 24 

 18 

 16 

 11 



103 



Number of 



chicks 

 that died. 







7 



18 



5 



38 



25 



4 

 3 

 4 

 8 

 6 

 2 



27 



26.2 



Prairie State Brooders used in each test. 



