348 MR. B. B. POULTON ON THE COLOUR-RELATION BETWEEN EXPOSED 
Globe 1. 
Normal. 
Globe 2 
Blinded 
:{ 
3. N. <f 
4. B. 
6. N. | 
7. B. 
8 
,N.{ 
9. B. 
10. N. 
12. B. 
13. N. 
14. B. 
Date when found pupated. 
Both 
on 
Aug. 
27, 
9.30 
P.M. 
One 
33 
33 
33 , 
One later 
One 
on 
Aug. 
27, 
9.30 
P.M. 
One 
33 
33 
9.50 
A.M. 
Both 
33 
33 
9.30 
P.M.' 
One 
33 
33 
33 
One 
33 
33 
9.50 
A.M. 
Both 
33 
33 
9.30 
P.M. 
One 
33 
33 
„ ' 
One 
9.50 
A.M. 
One 
9.30 
P.M. 
One later 
Both 
on 
Aug. 
27, 
9.30 
P.M. 
One 
33 
33 
33 
One 
33 
33 
9.50 
A.M. 
One ( 
only) on Ai 
ag.27 
,9.30 
P.M. 
One 
33 
33 
9.50 
A.M. 
Position in Hobe. 
j Comparison of colours August 29. 
Both f up and on opposite 
sides 
Both low down and about 
^-circumference between 
them. The higher pupa 
i up 
One on white-paper floor . 
One § up. 
One suspended from paper 
roof 
One on floor (deformed) 
One § up. 
One on floor. 
Both \ up and 3'2 cm. 
apart 
Both f up and 1'2 cm. 
apart 
One g up. 
One on floor (deformed) 
Both rather over g up and f 
1’3 cm. apart [ 
One fell down, probably g up 
One on top, fixed to globe 
rim 
\ up. 
One on floor (deformed) 
Both light (3). 
One very dark (3). 
One very light (3). 
(3), with dark pigment, but 
prominent pink tinge. 
(3) . 
(4) , pink rather than golden. 
Apparently light (3). 
Very light (3). 
(4); not muchgold,very pink, 
great absence of pigment. 
Both (4); not much gold, 1 
very pink, great absence 
of pigment. 
One dark (3), one (3). 
Light (3). 
Apparently light (3). 
One darkish (3). 
One (3). 
Very dark (3). 
Very dark (3). 
Light (3). 
(4), normal pink and gold. 
As in all the other cases in which the larvae were blinded, this experiment yields 
negative results, and subsequent to this date blinding experiments were not further 
pursued (except in Series VIII. and under other conditions). The effect of proximity 
is doubtless seen in the darkish colour of the pupas in Globes 8 and 10. 
C. In an examination and re-arrangement of the stock of larvae (in a large clear glass 
cylinder), August 26, three were found suspended from the food-plant and much 
shaded, and were transferred to the gilt compartmented box, while three more were 
suspended from the clear glass roof, which was placed over a black cylinder and 
covered with black paper (on its upper free surface). Thus the experiment was 
intended as a further test of the larval susceptibility during Stage III. 
The experiment was conducted as follows:— 
