138 Appendix. 



On the iced pupae . . . Si, 66, 76, 76, 66, 66. 

 On the not iced . . . 56,56,51,51,46,51. 

 Measuring the common black discal band across the 

 middle of the lower medium interspace on fore wing : 

 On the iced pupae . . . 51, 66, 51, 51, 56, 61. 

 On the not iced ... 76, 71, 66, 63, 71, 76. 

 In other words the natural examples were more 

 melanic than the others. 



No difference was found in the length of the tails or 

 in the length and breadth of wings. In other words, the 

 cold had not altered the shape of the wings. 

 Comparing I male iced with 6 males not iced : 



1. The former had a large double connected red anal 



spot, edged with white scales at top. Of the 6 

 not iced, 3 had but I red spot, 2 had I large I 

 small, I had I large and a red dot. 



2. The former had 4 green lunules ; of the latter 3 



had 3, 3 had only 2. 



3. The former had the subapical spot and stripe in 



the cells clear green ; of the latter i had the same, 

 5 had these obscure or obsolescent. 



4. The colours of the iced male were bright ; of the 



others, 2 were the same, 4 had the black pale, the 

 light sordid white or greenish-white. 



Looking over all, male and female, of both lots, the 

 large size of the green submarginal lunules on the fore 

 wings in the iced examples was found to be conspicuous 

 as compared with all those not iced, though this feature 

 is included in the general widening of the green bands 

 spoken of. 



In all the experiments with Ajax, if any change at all 

 has been produced by cold, it is seen in the enlarg- 

 ing or doubling of the red anal spot, and in the increased 

 number of clear green lunules on the hind wings. Almost 

 always the frontal hairs are lengthened and the colour of 

 the wings deepened, and the extent of the black area is 



