these, Br 
↗/ Br; or these, Br→Br. Consequently, from a sufficient number of matings a quarter of the calves are pure black, BB; a half are masquerading blacks, Br; and a quarter are pure red, rr.

Again, when black masqueraders are bred back to pure black cattle, one half their progeny are pure black, the other half masqueraders. Thus BB →
⤨/→Br gives two pure blacks, BB; and two masqueraders, Br.

Further, when black masqueraders are bred back to red, one half their progeny are masqueraders, the other half are red. Br→
⤨/→rr gives two masqueraders, Br, and two reds, rr.

These black masqueraders cause confusion, since they cannot be separated from the pure black ones by the naked eye; but, like the intermediate roans, they may also be the means of transmitting a colour from one set of cattle to another. For instance, red cattle of North Devon type were taken to the south of Ireland a century ago, or more, and crossed with the native black Kerry cattle. The result of the crossing and