Proc. Roy. Socy. of Edin. ] 
[Yol. XXY. 
Plate II. — Artificially reared salmon, one, two, and three years old. The largest fish 
is, like the fish shown immediately above it, three years old, but has been one year 
in a sea-water pond. It is 33 '0 cm. long. 
Mr W. L. Calderwood. 
