77//? BREEDING OE C/ffCKENS 



no 



instead of the supposedly nonimi iiuiiiher, eiglit. 'I'his is 

 the mating of rela,ti\x's and is, tlicrefnrt', inl)r(.'ediiii;'. iiecanse 

 no one of tliese hirds ap])ears in the pcdii;iT>e of K oftener 

 tiiau any other of the same generation, no Hne hreeding lias 

 ijeen done. 



Fio. 51 



K{ 



llluslrutiiig iubreediitg I hat is mit lino Ijreeding. 



In I'igure 52 tlie nnniher of aiieestors is also re<iuced hy hah' 

 and the intensity of the inhreeding of L is exaetly tlie same as 

 that of K in Figure 51 . A notaljle ditferenee, however, arises 

 ill the faet tliat eacli hlood line of /- runs hack to . I as a sire in 

 I'igure 52. L is therefoi'e saiil to he line hred with refereiiee 

 to A. 



Fig. .52 



F / ^ 



L-l 



Illustratiii;;^ inbreeding that is lino brooding. 



Line breeding is as near as the poultry breeder can eome to 

 seeuring the benefits of asexual repro(hietion, wliieh the 

 liorticulturist secures throngli cuttings. If an unusually 

 fine tree makes its appearance among seedlings it is preser\'ed 

 and nniltiplied by asexual means, and thus "the blood" is 

 transnutted to the next generation in perfect purity. This 



