27 



•^Due portion of the blue near the tip is lost, and on the lower wing' 

 "the outer part of tue ring round the eye is obscured by the ground 

 colour; by cold the bluish white marks are reduced; white, black, 

 and a few blue scales appear beneath the reddish ground colour 

 and the border — and the inner pa'cli on the fore margin is 

 ■extended towards the shoulder — by still more prolonged cold, six 

 "weeks, there appears in some cases a black spot on the inner margin 

 corresponding to that in the toi-toiseshell, the middle part of the 

 • eye acquires black scales corresponding to the end patch in the 

 toitoiseshell. In some instances the eye of the hind wing is 

 almost obliterated. 



In the Camberwell Be-:vuty, with 48 hours' heat, the blue spots 

 are greatly reduced in the fore wing, and the yellow border reaches 

 the blue spots. With 60 hours' heat, the blue spots are reduced 

 to half the size, and tinged wi h violet, the ground colour becomes 

 darker, and the yellow border becomes so much darker that but 

 few yellow scales are visible, the projecting points of the border 

 are not so prominent. With cold the ground colour becomes 

 .lighter, spots appear like the two centre spots of the tortoiseshell, 

 the blue spots of the fore wing become much enlarged and ringed 

 "with black. With more prolonged cold, the blue increases, the 

 yellow border narrows, and in a few cases the blue spots of the 

 hind wing not only reach the bonier, but are continued into it as 

 acute projections. With 44 days' cold, the border becomes still 

 narrower, and is much mixed with black scales, the b'ue intrudes 

 still more into the border, and the ground colour becomes velvety 

 black. 



In the tortoiseshell, heat 60 hours, the blue spots on the margin, 

 especially of the fore wing, disappear, as also do the black spots 

 near the centre ; the black patch on the hind margin is much 

 smaller, sometimes nearly disappears. With cold, blue spots in the 

 border become larger and well defined ; in several specimens a 

 black transverse shade passes from hind patch to front, looking as 

 il ufarly half the wing was blackened up to the shoulders. With 

 42 days' cold the beautiful blue spots are overpowered by black, 

 like the polar varie'y. 



The red admiral, heat 72 hours, blue of the fore wing becomes 

 reduced to two small spots near the tip, red band widens in both 

 directions, abundant reddish shading between the red band and the 

 shoulder. The white spots all reduced in size, sometimes the fifth 

 dissappears. Many examples, too, have red scales between 2nd 

 and 3r.i white spots. 



With cold, the white spots are much enlarged, the red band is 

 narrowed and divided by two black shades about the middle into 

 -three portions ; the lower portion of band is also cut off. In ex- 



