52 PSYCHE [June 



pattern e — both in the recessive group ? (2) Pattern b seems to be characteristic 

 of the DR's. In how far is this so ? (3) Specimens occur in which the middle spot 

 is jomed to the posterior one. How does this character behave in inheritance ? 

 (4) Specimens having all the spots joined are more common near Washington, D. C, 

 than near New York. Is there a definite geographic variation, melanism increasing 

 toward the North ? (5) How is the color pattern affected by experimentally modi- 

 fied environment? 



