The Journal of Heredity 



IN THE SECOND YEAR OF THE WORK il913i THE LEGHORN BLOOD WAS ADDED 



' I This picture shows the kind of single comb white males which were mated with the Silver Ciray 

 Dorking hens in the orij^inal mating known as pen IX. The characteristics desired from the Single 

 Comb White Leghorn cross were the single comb, color of {ilumage, yellow legs, white shelled egg, heavy 

 laying cjuality and the four toed feet. The characters to be eliminated were the rangy conformation, 

 light covering of flesh and the white ear lobe. The last named character was expected to be the most 

 difficult problem and events justified the expectation. Note the later pictures illustrating this point. 

 (Fig. 3.) 



will also be mated with some of the 

 al)o\'e offspring to proctire a Rose Comb 

 variety of the breed.' 



From this time on the perfecting; oi 

 the breed will be done by selection of 

 the best individuals, care being taken 

 not to inbreed tJ)o closely so that the 

 constitutions of the foundation stock 

 will not be ini{)aired. Careful record 

 will be kept of each step in this work, 

 and photographs taken ol ni.m\ o| the 

 si^ecimens tisid. 



timk .\m) pl.vck of st.xrtint. thk 

 i:.\im;kimi;nt 



The effort to soKe this problem was 

 begun in the spring of 1912. At that 

 time preliminary matings were made 

 at the(io\ernment potiltr\- farm, Belts- 

 ville, M(l.,and the work has since been 

 carried on entirely at that location. 



HKi;i;i)s .\M) \ AHii' rii:s used 

 Three \arieties, each of a different 

 breed, were selected as ha\ing the va- 



'Up to the i>resent time I have not undertaken to make the Rose Comb variety of this new bree<l. 



