416 THE AMEBIC AN NATURALIST [Vol. XLIX 



daughters were more likely to be abnormal. These 

 records were made at a time when no suspicion of Such a 

 relation was present in my mind. If these observations 

 are to be trusted they mean that when abnormality comes 



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in with the egg the heterozygous female is more likely to 

 show abnormality than when the abnormality comes in 

 with the sperm. Conversely the result may be stated in 

 this way— when normality comes in from the egg the 

 daughters are more likely to be normal than when the 

 normality comes in from the sperm. In other words, we 

 might extend this conclusion and state that the cytoplasm 

 of the egg has an influence on the soma of the individual 

 which arises from it, or the cytoplasm plus the nucleus 

 of the egg has more influence on the next generation than 

 the nucleus of the sperm. 



When this possibility was realized it was evident that 

 some of the experiments must he repeated under eondi- 



