( ) 
the underside the orange-brown ground-colour is increased in 
area and is much lighter and more orange in its colouring. 
The pupae endured cold better than heat. Icing from 8 to 40 
days, followed by a normal temperature for 12 to 14 days, 
produced no sensible alteration of markings or colouring, but 
an exposure to a temperature of about 48° for 22 days and 
up to 36 days caused a sprinkling of the white band with 
black scales ; the most sensitive part in this respect is in the 
hindwings, the interspace between the costa and the next 
nervure ; here it is so dense as to turn the white to a dull 
grey. On the underside this cooling caused a slight increase 
in the area and intensity of some of the darker parts, but 
this was counteracted by a tendency to suffusion and 
spreading of any white parts. He thought that this species 
would bear a longer exposure to a low temperature than he 
had ventured on trying. He also showed a long series of 
Vanessa C-album, the larvae of which had been kindly sent him, 
in May last, by Mr. Allan Nesbitt of Llandogo, Monmouth- 
shire, Though subjected to more severe cold and for longer 
periods than those experimented on in 1893, as recorded in the 
Transactions for that year, they showed no very considerable 
increase in the results obtained. Some, however, showed a 
substantial increase of the area and intensity of the dark 
parts and a darkening of the light parts, besides the 
occasional appearance of a few blue or lavender scales in 
places where, according to Dr. Dixey, they had a special 
significance. Mr. Merrifield stated that Dr. Standfuss had 
published some temperature experiments on this species which, 
as he had found, had shown itself not so sensitive to pupal 
temperature as some other species of Vanessa had proved them- 
selves to be. Unexpectedly he (Mr. Merrifield) had found the 
species to be distinctly more intolerant of cold and less 
intolerant of heat than is L. sihylla. Experiments on a few 
pup^ of Vanessa car did in 1894, showed this insect to be 
extremely sensitive in its colouring and markings to both 
high and low temperatures ; this was quite in accordance 
with the experience of Dr. Standfuss, who had described the 
great results obtained by his experiments with this species. 
Dr. Dixey said that Mr. Merrifield had kindly given him the 
opportunity of carefully examining the specimens exhibited that 
