384 



THE AMERICAN NATURALIST [Vol. XL VIII 



alter the case, changing it from multiple allelomorphism to link- 

 age ? It seems to me that this is one more case in which a fallac- 

 ious conclusion is reached in consequence of using small letters 

 for absent characters in Mendelian formulae. Professor James 

 Wilson has pointed out others. 



W. E. Castle 



Bussey Institution, 

 Forest Hills, Mass., 

 May 6, 1914 



