210 NATURALIZATION OF FISH. 



River Cod. In the Murimbidgee River abun- 

 dance of river cod were taken. 



Bennetts Wanderings in New South Wales. 



In the Isle of Osero, on the coast of Dalmatia, 

 there is a fresh-water lake inhabited by sea fish. 

 There is a salt lake at the Cape de Verde which 

 is inhabited promiscuously by marine and fresh- 

 water fishes. 



A letter has been read from Mr. Meywell, of 

 Yarm, in Yorkshire, to the Wernerian Society, on 

 changing the habits of fishes. For four years past, 

 he kept the smelt or Sperling, salmo eperlaus, in a 

 fresh-water pond, having no communication with 

 the sea ; they thrive and breed freely. 



Edin. Phil. Journal, vol. xiv. 



There appears to be ponds connected with salt 

 water in the Sandwich Islands, belonging to the 

 Royal Family, in which there are a store of small 

 fish always to be obtained, mentioned by J. 

 Trembly, Esq. who accompanied Lord Byron to 

 the Pacific Ocean. ZoologicalJournal, No. xiv. 



Artificial Salt Water Estuaries. A very sin- 

 gular and successful experiment has lately been 

 made in order to introduce sea fish into these estu- 

 aries. These, it seems, are hollowed out to a 

 considerable depth, and kept subject in a degree 

 to the influence and changes of the tide ; although 



