Fish Culturists' Association. 37 



themselves, have also been conducted on a large scale. The work was 

 prosecuted b}' the United States on man}' of the coast streams from the 

 Savannah Elver to the Penobscot, and large numbers of 3'oung fish were 

 not onlj' turned into the water at the points where they were hatched, 

 but transferred to tributaries of the Mississippi and of the great lakes. 

 A successful shipment was also made to the Sacramento River of 35,000, 

 and a small number to the Jordan, a tributary of Great Salt Lake. 



As in previous years, Massachusetts, Connecticut, and New York 

 carried on similar operations for the benefit of the local waters, while a 

 beginning was made in the same direction b}' the Commissioners of 

 Pennsylvania in the Susquehanna River. 



The cultivation of whitefish has also been prosecuted with great zeal, 

 particularly b}' the States of Michigan and New York, while a considera- 

 ble number belonging to the United States Commission was sent to the 

 Commissioners of California, and by them successfull}' planted in the 

 waters of Clear Lake. 



The operations in connection Avith whitelish have of late years been 

 prosecuted on a ver}- large scale by the State of New York, under the 

 direction of Mr. Seth Green. In 1872 the State hatching-house at Cale- 

 donia contained about 3,000,000, which were duh* planted when hatched. 

 The number was less in 1873. In 1872 the United States Commission 

 engaged the services of Mr. N. W. Clark, in connection with the white- 

 fish eggs, and transmitted about 400,000 to the State Commissioner in 

 California. In 1873 the State of Michigan collected a large number of 

 these eggs for introduction into its own and adjacent waters. This fish, 

 as is well known, is the most important of any species taken in the lakes, 

 and it is fortunate that the method of their artificial propagation proves 

 successful, and promises so satisfactory results. Onl}- hy such a process 

 can the numerous waste and drain caused by the fisheries as at present 

 prosecuted be met and replaced, an expenditure of ten or fifteen thousand 

 dollars per annum being sufficient to secure the return in value of many 

 hundred thousand dollars in productive results. 



The discovery of a species of gra3iing ( Thymallus tricolor) in certain 

 rivers of Michigan, has suggested the importance of making this fish more 

 widely known, b}' introducing it into appropriate waters elsewhere. Fish 

 of this genus are much esteemed in Europe, both as an article of food 

 and as furnishing excellent sport in their capture ; and the American 

 variety will probably be much sought after when arrangements can be 

 made to supply the spawn in suflicient quantity. 



A very important advance in the artificial propagation of fish was made 

 by Seth Green and party while in the service of the United States Com- 

 mission, in the discovery that striped bass, or rock-fish {Roccus lineatiis,) 



