33 
they must show evidence of it, while these are perfectly 
free from any such trace. It appears to me that they are 
simply whole animals of similar species to those found. | If 
so, they are of no value whatever as evidence. Weshould 
have the real contents of stomachs. 
To give an.actual illustration of cod feeding. The 
curator of the Aquarium once reported to me that 
a fisherman had brought in an enormous cod which 
was the greatest scarecrow he had ever seen, It ought 
to have been from 25 to 3o0lb. weight, but’ was only 
about g or tolb., it was in such an emaciated con- 
dition. I went to look at the fellow, and I found he 
was suffering from a very curious thing which does 
not seem to have attracted the attention of the fish- 
ery scientists. When you catch fish of the cod family in 
the sea they are often blind from a sort of cataract over 
one or both eyes. One day when I was long-line fishing 
with Mr. Greenall’s steam yacht, kindly lent me for 
the purpose, I took special note, and ro per cent. of 
those. we caught were partly blind, while 5 per cent. 
appeared totally dark. This one was quite blind. We 
had just received a quantity of herrings as food for the 
seals. They were not of the largest size, but were good 
marketable fish bought in the ordinary way. We threw 
onein. Blind or not blind, the cod recognised the presence 
of food, seized and swallowed it. We tried another, and 
D 
