K. TOYAMA 



359 



In the spring of 1912, six blue batches (three light and three dark 

 blue) derived from the lineage which produced only blue batches were 

 reared separately as in the former generations. They gave the following 

 egg-batches : 



Totals 



28 



306 



335 



Of 335 batches derived from the six blue parent batches, 306 were 

 divoltine white as is usual in the divoltine breed, and 28 were univoltine 

 blue coloured and only one was a mixed batch consisting of both divoltine 

 white and univoltine blue-coloured eggs. 



The summer brood derived from four batches of light blue series 

 and four batches of dark blue series gave the following batches : — 



Light Blue Series. 



22 



Normal 



i(?) 



Totals 



71 



58 



30 



9 



Totals 



71 



96 



1(?) 



Dark Blue Series. 



No. 



2(?) 



168 



Totals 

 39 

 65 

 71 

 68 

 46 



Totals 



83 



204 



!{■?) 



289 



Now we are able to extract the blue-egged characteristic as a constant 

 form. As to the light and dark forms, they seemed to be fluctuations of 

 the same character, blue. 



