IQ20] 



COULTER— A LEU RONE COLOR 



421 



to develop two sufficiently well filled ears under the handicap of 

 artificial pollination. Hence it was very common to get one full 

 ear, while the other contained so few grains as to be practically 

 worthless. This depends in part, of course, on the variety of 

 corn used. 



The bulk of the data obtained was on starchy-sweet and yellow- 

 colorless ratios, and will be merely summarized at present: (1) the 

 ratios were virtually identical on both ears, and (2) any marked 

 deficiency of a given class on one ear always appeared in a strikingly 



TABLE II 



Ear 



660 

 661 



704 

 707 



683 

 684 



682 

 680 



572 

 57i 



670 

 678 



557 



558 



Count 



206:161 

 203:158 



242:81 

 275:91 



118:45 

 47:19 



163:54 



33:i4 



108:33 

 62:15 



138:80 

 276:94 



43:42 



25:25 



Observed ratio 



56 



56 



74 

 74 



72 



7i 



75 

 70 



76 

 79 



63 



74 



5° 



5° 



i3:43-87 

 23:43-77 



61:25.39 

 93:25-07 



39:27.61 

 21:28. 79 



57:2443 

 21:19.88 



59:73-4i 



48:20.58 



30:36.70 

 59:25-4i 



58:49.42 

 00:50.00 



Predicted ratio 



56.25:43.25 

 56.25:43.25 



75.00:25.00 

 75.00:25.00 



75.00:25.00 

 75.00:25.00 



75.00:25.00 

 75.00:25.00 



75.00:25.00 

 75.00:25.00 



75.00:25.00 

 75.00:25.00 



50.00:50.00 

 50.00:50.00 



similar degree on the other ear. Relative to some of the ratios 

 discussed earlier in this paper, representative data follow. 



I. Colored-colorless ratios are markedly consistent for both 

 ears, as may be seen from table II. The only decided inconsistency 

 is between 670 and 678. There is little doubt that this incon- 

 sistency is real and significant, although it cannot at present be 

 interpreted. One feels, however, like regarding this as an isolated 

 exception. 



II. Purple-red ratios are also about as consistent as could be 

 expected (table III) . Probably the only significant case is 682-680. 

 Although the converse has been well demonstrated for other 



