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THE AMERICAN NATURALIST [Vol.LVI 



spring should contain normal diploids, both the Globe and 

 the Reduced mutants, as well as the double mutant, Globe- 

 Eeduced, roughly in the proportion of 6 : 2 : 2 : 1. 



Triploids (fig. 2) have been discussed in this morning's 

 session. Our prediction at last year's meeting has been 



Globe-Reduced (2n+l OJ + 1 Ra) below 'llelow- each capsu'l' ™ut:\nt 



