658 Dr. G. D. Hale Carpenter on the inheritance of 
photograph of fig. 8 is quite clearly differentiated from the 
rest of the orange band in the fore-wing, but if one looks at 
the specimen this difference is not so marked. ‘There is 
therefore some difference in the two parts of the orange 
band more clearly perceived by the photographic plate 
than by the human eye. Fig. 8 enables one to realise more 
clearly how the pattern of the more typical planemovdes 
form such as 4 and 6 can influence the hippocodn form, 
and cause the intracellular spot to be of larger size than 
usual. The pattern of hippocodn may be similarly recog- 
nised on the under surface of the 3 planemoides offspring, 
where, indeed, the demarcation between the paler orange 
of the subapical bar of the former pattern is rather more 
distinctly marked off from the darker orange of the latter 
than on the upper surface, the junction between the two 
tints, as it obliquely crosses area 4 (between veins 4 and 
5), being faintly emphasised by a slightly deeper shade of 
the same colour. 
Prof. Punnett, F.R.S., in the July number of ‘‘ Bedrock,” 
1913, protests “‘ against Prof. Poulton’s assumption that 
any small variation may be inherited,” and says “in no 
clear case has it been shown to exist.” 
The specimens just mentioned seem to constitute a 
pretty clear case in which quite a small and relatively un- 
important part of the whole pattern of one type derives 
its unusually large size by heredity from the corresponding 
area, much larger and less well-defined in shape, of a parent 
whose pattern is quite different. 
Not only is the average size of the spot in the seven 
specimens under consideration larger than the average of 
any other brood, but individuals have a larger spot than 
any of the specimens in the Hope Department from all 
parts of Africa. 
It may be said that it is not fair to compare the 
planemoides family with Mr. Lamborn’s families, because 
W. African specimens have all the white areas of the wing 
contracted in size, thus following their model Amauris 
niavius, L., whose Western form has smaller white areas 
than the Eastern form dominicanus. 
An answer to this is provided by the dardanus families 
reared at Durban in Natal by Mr. G. F. Leigh, as well as 
by the other examples from 8.E. Africa; for it will be 
shown on p. 662 that the average length of the spot 
in all these hippocodn is actually less than that of the 
