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smooth yellow, smooth green, wrinkled yellow, or wrinkled green, 
respectively. The green seeds appeared to show less susceptibility 
to the effects of exposure than those of the pure Telephone stock, 
and only a few, and these obviously badly developed, showed any 
yellow patches. Although this is partly accounted for by the fact 
that they were gathered sooner, this does not appear to be the 
whole explanation, but it seems clear that there was an actual 
intensification as the result of the cross. It was also noticed, on 
examining the seeds after the removal of their coats, that the shade 
of colour, whether yellow or green, was distinctly paler in the 
wrinkled cotyledons than in the smooth ones.* 
Even without removing the coats it was hardly ever possible to 
confuse yellow seeds with green ones, but the discrimination between 
smooth and wrinkled seeds was more difficult, owing to the fact 
that seeds properly belonging to the smooth group were often a good 
deal pitted and irregular in shape. The result of the actual sampling 
8(9)06 
