American Fisheries Society 417 



been given no attention by practical fish culturists and sub- 

 sisted only on the natural food found in the pond. 



Many steelhead and rainbow trout, planted in these and 

 other waters in the Province of Cordoba from the La 

 Cumbre hatchery in August, September, and October, 1908, 

 have been seen and they were from 15 to 20 centimeters 

 long when but 6 months old. Some specimens of the steel- 

 head trout were taken from the rearing pond at the La 

 Cumbre hatchery, by the chief of this section and the 

 "ayudante" in charge of the station, which were from 24 

 to 27 centimeters long when less than nine months old. 

 Good reports have been received concerning steelhead and 

 rainbow trout planted in one lake at the head of the Rio 

 Yala in the Province of Jujury. Dr. Victor Vargas, the 

 owner of these lakes, wrote me that he had seen many of 

 the trout and they were 15 to 20 centimeters long. The 

 letter was written when the fish were six months old. 

 Robert M. Smyth, Esq., manager for Leach Hermanos at 

 San Lorenzo, wrote that he had also seen some of the 

 steelhead and rainbow trout planted in waters near there 

 and that they were in good condition and growing rapidly. 

 Nothing has been seen of the rainbow, steelhead and brook 

 trout planted in the various rivers in the Province of Tucu- 

 man, but this was to be expected, as these rivers are very 

 much larger than those in the Province of Cordoba, and 

 it will be accordingly difficult to find the fish until they are 

 a year or two old. The brook trout from the La Cumbre 

 hatchery which were planted in the Arroyos de la Ventana 

 and San Pablo and their tributaries, all in the Province of 

 Buenos Aires, have given good results. Sir Rudolfo Funke, 

 a prominent estanciero, reported in March, 1910, that he 

 had recently seen large numbers of brook trout in the 

 Arroyo San Pablo, and a considerable number in the 

 Arroyo de la Ventana. Mr. Funke assured me that the fish 

 which he saw were from 25 to 30 centimeters long, and that 

 he was quite sure of their identity as he had often caught 

 brook trout in Germany and other portions of Europe. 



