THE CALIFORNIAN SALMON. 
129 
they were found to have perished. It is to be hoped that 
a renewed effort will be made to acclimatise this valuable 
fish in the rivers of France. 
The waters of the Mediterranean have no salmon in 
them, and probably the Salmo salar would not live in the 
high temperatures of that sea, but it is extremely probable 
that the Californian salmon would be well suited to the 
European rivers which debouche into its waters. During 
the last season three hundred thousand eggs of this fish 
were imported by the German Eischerei-Verein, and on 
their arrival twenty-five thousand of them were found to 
be in good condition. A portion of the fish hatched from 
these ova were put into the tributaries of the Danube, and 
the remainder into those of the Ehine. There are many 
rivers and streams falling into the Mediterranean, in 
France, Italy, Austria, Spain, and Portugal which might 
be found well suited to the Californian salmon, and the 
attempt to introduce this valuable fish would be well 
worthy of the attention of the governments of the coun- 
tries interested. The Ehone and its tributaries should be 
especially well suited for this experiment ; also the Po and 
Adige in Italy, the Ebro and Guadalquiver in Spain, and 
the Tagus and Guadiana in Portugal, besides many other 
minor streams of little note, but from which valuable results 
might be obtained. 
In the United States of America the subject has been 
warmly taken up by an enlightened Government, and 
enormous numbers of fish have been hatched artificially 
and afterwards liberated, greatly increasing thereby the 
annual results of the fisheries, which had been gradually 
diminishing, and which tended towards the extinction of 
the most valuable kinds. The matter is necessarily the 
business of the Government, as no individual can be 
expected to breed fish on a large scale, and to liberate 
i 
