No. GOS] MVLTII'LE 1A( T<U;> l\ MH l< .WD I: ATS 467 



mentation characteristic of thv ]<]\\> pni-ciit ;ni(l twenty- 

 three or 24.75 per cent, of tlu^ youii-- >li.iw -rades char- 

 acteristic of tlic iiiiims parciil v.u-v. W li.'ii tlir F, yonn^ 

 are bred iiih r sr tlici-c i> ;i innrl^cd i iicivn-c in the per 

 cent, of youiiLi- >lM)\\ iii-- iir;idc> of piuinniiMi ion .-lini-iK-lor- 

 istic of the ui-;iiidp;ii<-iiN. Xiiiriv tliiv.'. m ;M.:. pn <M'iit., 

 of the :?nr, ]•;_, -.'ncrntion xoini- fjill in -rjid."- clianh-lcr- 



A ...rnnd rro-^ nindr lu-rwrm Mv.vfd nininaU i^ ^linwn 

 in Tal.ic W Kcnialt'^ cf uiadr ]>lu^ lliivc and tliive 

 quarters of the tenth sek'ctioii ii-enerat idii were .•ro^-cd' 

 with a male of frrade minus three and our nuaitcr <<\' the 

 tenth selection jreneration. As a control I'm' ihc I'mialcs 



quarter ]>arciit- in th<' t»'nth and <'lc\-ciit ii -vnnat i( mis. 

 Tlie rea>()n for mmhu iwn u-MM-rat i^n^ inM.-ad nf >,ur in 



the tenth ^^cnci'at ir.n ah.n.- ^how^ ^ii.-ii a ^iiia^l ininihn- of 



test. The ratmr nf xaiMation in pi..-..n\ ol thi^ 



^?rade is show n in the -<■.■(, nd 'int- of Tahh- \'. A- conH'oN 

 for the minus parent, rat^ of iira(h' minus two and tliree 

 quarters and two and -oven ci-litli- of the tenth selection 

 generation havo heon nx'd. Althonuli the total of the 

 young produced liy them i> v^'vy >niall (thirty-one), it 

 is, nevertheless, the only critiral data available. The 

 range of variation of these youniz' i> >liown in the first 

 line of the table. The F, gcn.'i'ation i<-n!tinu- from the 

 cross of these two diverse M*h'c{ion t\iM'- i- vliown in 

 the third line of Tabh" V. The f.iit.MH xmiui- runipriMUg 

 thi< generation all fall in -iadr~ l.-t^.-m tuo paront 



