444 



Professor E. B. Poulton on 



one in the hippocoon and trophonius offspring of the six 

 families, is shown below in a tabular form. When the 

 character is present on right or left side only it is counted 

 as ^, and if on one side of two individuals as 1. 



* Including No. 5 171 wliich the spot is nearly divided 



A comparison of Family 5 with the others at once 

 shows that there are certainly hereditary tendencies in 

 details of the pattern. If the pattern of the model became 

 more nearly approached by the division of spot (5) in the 

 mimic, or by the addition of such elements as (4a) or (2«), 

 the above table supports the conclusion that selection 

 would quickly confer these characters upon the cenea 

 form of I'emale. It is equally clear that these hereditary 

 tendencies exist in the most varied combinations. Thus 

 referring again to Plate XXIV, it is obvious that the 

 addition of (4^^) and (2a) tends to occur when the normal 

 spots are well developed, but (4a) is present in Fig. 14, 



