BULLETIN' OF THE UNITED .STATES FISH COMMISSION. 441 



by means of which it was hoped to insure low temperature in the appa- 

 ratus ; but when, after 09 days, the ice had melted, and the temperature 

 rose rapidly in consequence, all the eggs perished iu a few days. The 

 third attempt was made in 1862, when in March the ship Beautiful Star 

 left Loudon with 00,000 salmon eggs, placed iu a hanging apparatus, 

 and, as the last time, kept on ice. The ice lasted till May 17, when the 

 eggs died rapidly, 71 days after they had been shipped and 80 days 

 after they had been taken from the fish. Although this attempt must 

 likewise be considered a failure, it proved the important fact that salmon 

 eggs, even under unfavorable circumstances, could be kept alive for 80 

 days; and as in London the possibility had been shown of hatching- 

 salmon eggs which had been laid in ice for 100 days, it was believed 

 that the problem of introducing salmon into the Australian rivers would 

 be satisfactorily solved in the near future. 



This belief was well grounded. Ou January 24, 1801, the ship Nor- 

 folk sailed from London for Melbourne, carrying 90,000 salmon eggs 

 and 1,000 salmon-trout eggs, and an ice-house holding a considerable 

 quantity of ice. The ship reached its destination on April 15; and after 

 a "small portion of the eggs had been landed at Melbourne, the rest were 

 conveyed to Hobart Town, Tasmania, by steamer. Upon their arrival 

 at Hobart Town they were placed in the hatching apparatus on the 

 River Plenty on the 21st of April, 90 days after they had left London. 

 On Mav 4 the first salmon trout was hatched, and on the following da* 

 the first salmon. On June 10 the number of young fish was estimated 

 at 3,000 salmon and 300 salmon trout, which, after having reached a 

 suitable size, were gradually placed in open waters. 



Encouraged by this success, the Tasmania Government determined 

 to make a new attempt; aud the ship Lincolnshire, which sailed from 

 Plymouth on February 8, 1866, took out 103,000 salmon eggs and 10,000 

 salmon-trout eggs. The ship arrived in Tasmania on May 4, and on the 

 following day the eggs, of which 40 per cent were still alive, were placed 

 in the apparatus, and iu due time 6,000 young fish were hatched. The 

 work has been continued by taking roe from fish which had reached 

 maturity in Tasmania, and at the present time the salmon trout espe- 

 cially is considered well acclimated in the rivers of New Zealand, Tas- 

 mania, and Victoria. A large number of young fish and eggs have 

 been sent also to West Australia, but it is not known what has beeu 

 the result. 



From 1864 to 1881, 263,000 eggs and young fish have been placed in 

 Australian waters. Salmon and salmon trout are now caught fre- 

 quently, and it is stated that thus far the largest salmon caught in these 

 waters weighed 28 pounds. 



From statistics relative to the different rivers where young salmonoids 

 have been placed we find the following results: The fish iucreased rap- 

 idly in rivers; the fish increased in 44 rivers; the fish supposed to 



