No. 625] AN EARLY PAPER ON MAIZE CROSSES 99 



ABc ; Learning 

 ABC I 



Abe Golden Coin (Swi 



as lie sa>> 

 arc cro>S( 



In athcr words, lie oLsorved tli; 

 sues beyond the endospci'iii wcr 

 crossing. 



Mc'CHuer found that iti 1^ cmt-. 

 low and non-yellow t'lKlo.-pcnn. i 

 the F, kernels wa- never dnrk ; 

 whether the latter were tlic I'dIIi 

 This fact was o1)mm-n(m1 in .to.m- 

 and 18. Siiuv :\Ic(Muer remark^ 

 uniform in yellow dent \ white 



across the phenomeiioii ..f ix\o > 

 1911 by East and Tln>^ CIk pi'- 

 however, that niosl of tli<' in~t.ii 

 heterozygous yellows, beinu lij;lite 



