73^ Pink or Albino Carp . [December, 
that it should have so great an influence on animals that 
each annual increase, culmination, and decrease of that 
influence should be registered in their organisms will seem 
to many a great heresy. The sun, however, has more 
power than is generally supposed. Many persons will know 
that they do not feel the same under its decrease and 
increase. They do not seem to be the same persons in the 
autumn and in the spring, everything else being equal. The 
influence of the sun pervades all Nature, and reaches life, 
both animal and vegetable, in recesses completely hidden 
from its rays. 
VIII. NOTE ON PINK OR ALBINO CARP. 
By A. Anthony Nesbit, F.C.S. 
wN order to ascertain whether the change in the colour of 
yh carp effected by light, mentioned in the “ Journal of 
^ Science ” for June, was due to change of shade in an 
existing pigment, or whether light aCting on the epidermis 
manufactured an entirely new pigment, two albino or pink 
carp were taken, and one placed in a plain glass globe, the 
other in one of the same size coloured dark blue, and both 
placed in the same degree of light. After three weeks’ 
exposure the fish were placed in separate clear glass globes, 
and compared and pronounced by three independent observers 
to be practically unaltered. 
This faCt appears to indicate that light merely modifies 
an existing pigment which is absent in the pink or albino 
fish, and which it is powerless to manufacture. 
