The Flounder 



= 55 



moves from the dark to the hght the eye conveys the impression to 

 the brain, which in turn sends it on to the cells all over the back, and 



these open or close to make the Ijack the same colour as the ground on 

 which the hsh is resting. This changing oi colour continues for a time 

 after the fish is dead, and may he seen b)" removing the fish from a 



