No. 609] 



STUDIE! 



557 



degree of kinship, he will see upon careful consideration 

 the reasonableness of the numerical result. 



TABLE VTTI 



Values of thk Relationshii- Ck:)EFFiciENTS for Vakiods Degrees 

 OF Kinship 



. 7. 'l-liere are two ])onits in tlie development of relation- 

 ship coenicient- in thi-- paper which ma> ^eem open to 

 criticism. 'I'he first is that according to the definitions 

 and forimiLT of this ])a]>er, the degree of relationship be- 

 tween two individuals is not alfected by tlie number of 

 times ilic .same common ancestor occurs in the pedfgree 

 of either of the two individuals. The fact that such an- 

 cestor occurs at least once in both pedigrees makes it a 

 common ancestor. If it occurred more times it would not 

 be a more common ancestor, because after all it would 

 still be, all the time, just the same identical individual, 

 made up of the same germ }>lasm. Put in another way, it 

 is ( ommioiitij of ance«(try of two individuals which makes 

 kinship. But the multiple ap|)earance of the same indi- 

 vidual in two pedigrees does not make an> more ancestor^ 

 common to the tw^o related individuals than if this an- 

 cestor occurred only once in each pedigree. Consider an 

 individual A whicli is rather inttMiM^h inbred with refer- 

 ence to an ancestor X. Consider .mother indi^i<l^al B 

 whi< h is aKo mbuMl t<. ^m, , , \^ m i- h nii.e tn the 



s.imeindiMdiM' \ !'>.. .-i^ \\.^ 'min .i mm. nnnn -f-r 

 X, A and B aie related I'jut, Mcroidmu to the concep- 



