2 Notes and Comments. 
at Llanfairfechan’; ‘Oligodynamic Action of Copper’; and 
‘Sea Fish Hatchery at Port Erin.’ 
We regret that the demands upon our space enable us to do 
little more than draw the attention of naturalists to this useful 
report. The effect on the growth of mussels by overcrowding 
on the skears is admirably shown, and good work was done by 
transplanting young mussels in over-crowded areas, to places 
where they had better opportunity of flourishing. Under 
favourable conditions, mussels grow fully half-an-inch a year, 
but when they are too thick upon the skears progress is not 
so rapid. vacate 
In the same report a curious instance of arrested metamor- 
phosis in a flounder is referred to. As will be seen from the 
Flounder, showing arrested metamorphosis. 
figure, the left eye does not occupy the normal position, but is 
very distinctly on the (secondary) dorsal margin of the head, 
and, indeed, is easily visible from the ‘blind’ side of the 
specimen. The fish was also pigmented on both sides. For 
the illustrations we are indebted to Prof. Herdman, 
Naturalist, 
