220 SALMON-FRY DEPICTED. 



in the ** kelt " or foul state in rivers before they 

 migrated to the sea, and consequently they do 

 not leave it until the approach of the spawning 

 season. 



THE PLATES OF SALMON-FRT DESCRIBED. 



The 1st figure of plate No. YL, represents the 

 size of the ovum, or egg, a day before it is hatched. 

 It represents its outward appearance and very 

 little more. Its internal appearance, or rather 

 appearances, the art of the painter cannot fairly 

 depict. It cannot represent, withinside a thin and 

 distended shell, "an embryo fish, restless, and 

 turniUj^ frequently and quickly from one side of 

 the shell to the other, and often appearing to 

 break out of confinement, having a conical bag 

 attached, which is red inside and pale outside."* 

 What the pencil cannot describe the pen can ; 

 imperfectly, certainly, for it merely tells what 

 the investigator may observe as existing and oc- 

 curring in the interior of a salmon ovum, the day 

 before the young fish breaks through the shell.* 



The 2nd figure represents the salmon foetus 



* See note, page 182, on the appearances of salmon-ova 

 at successive staores of incubation. 



