THE POULTRY BOOS. 
187 
The results of crossing Polish with other varieties are described in the 
previous or following chapters. Respecting the interbreeding of the Golden, Silver, 
and Black varieties, Dr. Horner states : When the Golden or Silver Spangled 
are crossed with each other, cock with hen, or hen with cock, I found that the 
chickens in both cases were purely marked — Le, they w^ere well defined Silver, or 
otherwise Golden, Spangled. But when the Golden- spangled and the Beardless 
Black, with white crest, are thus united, the chickens partake of the colour of 
both parents in various degrees.” 
