382 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



able circumstance is well counterbalanced by the facilities for aeration, 

 which are very good and very fully employed. The eggs are placed 

 upon wire-cloth trays in stacks or tiers, ten deep, and arranged for a 

 free horizontal movement of the water. 



Of the eggs here obtained three-quarters are shipped away to the 

 order of the parties supporting the establishment; the remaining quar- 

 ter is hatched out and the young salmon liberated in the lake, to keep 

 up the stock of fish. The shipments are made in January, February, 

 March, and sometimes April. The eggs hatched are selected from those 

 that have been retarded in development, and they reach the age for lib- 

 eration in June, when their natural food is believed to be abundant. 



The following statement shows the work accomplished each year since 

 the organization of the establishment at Grand Lake Stream : 



* Including some whose sox was unknown, t Estimate. 



TRANSPORTING CARP FROM THE UNITED STATES FISH COMMIS- 

 SION TO BRAZIL. 



By J. W. COUCHMAN. 



[Letter to Prof. S. F. Baird.] 



It is with pleasure I report the safe arrival of thirteen beautiful spec- 

 imens of the survival of the fittest out of the one hundred carp which 

 were shaped to me from New York by steamer Borghese. They were 

 thirty-nine days at sea. The greater portion of them died before the 

 steamer reached St. Thomas. None died during the last ten days of 

 voyage. Your instructions for keeping them were not carefully observed. 

 The person who had them in charge fed them on hard-boiled eggs. If 

 it would afford you any pleasure I will be glad to give you a report of 

 them from time to time. 



ElO DE JANEIRO, BRAZIL, RUA DO OUVIDOR No. 130, 



January 6, 1883. 



