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long while; but I do believe that, if we could get an international law, as nearly 

 as possible consistent with these answers, and practically kept in force in the 

 seas east of the Skaw (to which seas my investigations have been limited), 

 our fiat-fish fisheries in the main would be considerable better off. I do be- 

 lieve also that it will be necessary to suffer the fish to grow to a larger size 

 even than I have here proposed, in order to get the greatest possible profit 

 on these fisheries in the future. Whether we can reach the goal in this way 

 will be shown by future statistics; that it is the right way, certainly, and that 

 we cannot any longer content ourselves by hoping that our fiat fish fisheries 

 will soon flourish again, is a fact of which T hope the following data will con- 

 vince at least some of my readers. 



Copenhagen, March, 1894. 



Later Note: 



When the whole of this treatise was written, and the greater part of it had gone 

 through the press, rny assistant Mr. Th. Mortensen, through continued investigations,' suc- 

 ceeded in proving the occurrence of pelagic eggs in the deep, saline water at Bornholm, 

 most probably the eggs of turbots and plaice. Some more young plaice, under 2 inches 

 in length, in all upwards of twenty, were found also at Bornholm. It is thus probable 

 that turbots and plaice, exceptionally, may be developed from eggs in this saline water 

 in years when such water is found at Bornholm. Cmp. my statements, pp. 10 — 11 & 27 

 on the propagation of the plaice, and p. 43 on that of the turbot in the Baltic Sea. 



For information on the changing salinity on deep water at Bornholm I shall refer 

 to Professor 0. Tetter son's hydrographical works in Kgl. sv. Vetenskaps Academiens 

 Handlingar. — 



This interesting find will be more closely discussed in a following report; I just 

 mention it here, because it gives an additional proof of the necessity of salinity or rather 

 of a certain specific gravity of the water, if the pelagic eggs are to be developed, and 

 l» 'cause it supplements my investigations into these, matters. 



