196 TEANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



tained, and, if necessary, reared and kept in ponds for the 

 purpose. 



It is interesting to notice that Mr. Harald Dannevig 

 has been experimenting with the fry of plaice in this 

 manner at the Dunbar Hatchery of the Fishery Board for 

 Scotland (see Fifteenth Eeport, p. 175, 1897), and has 

 succeeded in rearing them through their post-larval stages 

 until they had undergone their transformation into little 

 plaice and settled on the bottom. 



In the Eleventh Annual Eeport (for 1896) of the Sea- 

 Fisheries Inspectors for England and "Wales, Mr. C. E. 

 Fryer makes some interesting observations upon the 

 results obtained by the artificial hatching of sea fish, 

 especially in the hatcheries of Newfoundland and the 

 United States. Upon some of these reports, and Mr. 

 Fryer's comments, I desire to make some further remarks. 

 According to the Director of the Hatchery near Arendal, 

 in Norway, about 300,000,000 Cod can be hatched for an 

 expenditure of about £600, that is at the rate of a million 

 for £2, or something over 2,000 young fish at the cost of 

 one penny — a very moderate cost if even a few only of 

 the fish grow to maturity, or if, by increasing the swarms 

 of young fry, which must be eaten by their natural 

 enemies, they so enable some of the (perhaps stronger) 

 naturally hatched fish to escape destruction. 



Mr. Fryer's comments upon the figures which he 

 quotes in connection with the hatcheries of Newfoundland 

 and the United States, rather give the impression that 

 he is disappointed at the absence of more definite results, 

 and that he feels that an absence of increase, or even a 

 decrease in the fisheries, is not compatible with the claim 

 that the addition of millions of artificially hatched fry to 

 the sea must be a benefit to the local fisheries. But it is, 

 perhaps, unreasonable to expect, as the Commissioner of 



