20 
On April 26th the Witches began to move inside the 
ege covering, on the 27th the Lemon Soles were wriggling, 
and on the 28th both hatched out, eight and a half days 
after fertilization of the eggs. 
Mr. Scott went to Piel at the beginning of March fora - 
couple of months in order to test the water there by 
seeing how the keeping of various marine animals and 
the hatching of spawn compared with our experiences at 
Port Erin. I give further on (p. 29) Mr. Scott’s report 
to me upon his work at Piel, from which it is obvious 
that, although some measure of success was obtained 
in temporary premises under ‘‘ make-shift’ arrangements, 
the work was greatly hampered by the large amount of 
sediment in the water. We hope that the storage tanks 
and filter, which have now been established at the Piel 
Hatchery, will remove this difficulty, and will render the 
water more like that at the south-end of the Isle of Man, 
where no filtering is necessary. 
We hope, then, in the present season, with a continuous 
supply of water, the larger tanks, filter, and more efficient 
apparatus altogether, to conduct the hatching work more 
successfully, and to deal with much greater quantities of 
eggs. When, however, the little fish is hatched out, only 
half the work—and that probably by far the easier part— 
is done. I think it most important that we should make 
all possible attempts to rear the fry through their larval 
and post-larval stages, as far as possible, before setting 
them free in the sea. For this purpose other tanks, 
besides the hatching ones, will be necessary; and shallow 
ponds in the open air, or enclosed areas of the sea shore, 
would be a great advantage. The most suitable food, 
whether natural—such as diatoms, copepoda, and the 
like—or artificial, for each stage, will have to be ascer- 
