COMMITTEE B — DECEMBER 1903 ( 30 ) 
the hope that transplantation might be shown to be of value for practical purposes. 
The experiments should be made in the spring with plaice about 20 cm. in length, 
which could be transported in wooden watertight ADE supplied with running sea- 
water from the engine pump. 
Mr. Garstang said that he could imagine no problem capable of an earlier 
solution than the one under consideration. The results of their marking experi- 
ments during the past year gave them every encouragement to take up this 
development of the work. 
Dr. Trysom stated that in Sweden, in certain fjords, a great many plaice 
(ca. 20,000) were transplanted; but owing to the absence of laws, they were 
recaptured in a very short time. He also gave a detailed account of his experi- 
aa in the fjords. 
. Hrınere said he was quite satisfied with the interesting results of the 
Be in the Limfjord, but nothing could be said at present respecting the 
results of transplanting fish from the shallow waters to the deeper waters in the 
North Sea. So many factors had to be taken into consideration. He quite agreed 
with Dr. Petersen that very many experiments should be made in marking and 
transplantation, and he would work in the same direction. The large area of the 
higher parts of the North Sea would have to be explored, and out of a great 
many fish marked the recoveries would necessarily be rather small. Nevertheless, 
the method seemed a good one as a contribution to the problems of over- 
fishing. 
Mr. Garstang wished to communicate a few facts from the English records 
which appeared to bear on the question before them. While the dearth of small 
plaice on the Dogger Bank was well-known, they had occasionally taken specimens 
there below 20 cm. in length. The number of small dabs (P. limanda) on the 
other hand was exceedingly large, and caused this species to greatly outnumber the 
plaice on those grounds. Out of 2,500 dabs caught during the spring, more than 
one half were below 20 cm. in length. On the same grounds only 3 out of 360 
plaice were below the same limit. The paucity of small plaice was probably, 
therefore, not due to any scarcity of food, but to their inability at so small a size 
to cross the deep-water barrier which separated the Dogger Bank from the coastal 
erounds. The dab, of course, had no need to make this migration, as it was not 
restricted to the coastal waters in its youngest stages. 
If a large number of small plaice were transplanted, they might take the food 
