27G BULLETIN OF THE UNITED STATES FISH COMMISSION. 



put into a little canal, derived from the Brasset, a stream "wLich empties 

 into the Marne some liiindreds of meters awav. This little canal, well 

 arranged and full of ranninci^ water, is suited to these fish, which are 

 g^rowing: in a normal way and will afterwards be set free in the Brasset, 

 whence they can spread in the Marne and ascend its tributaries. It 

 will not be out of place to remark that the waters of the Marne are 

 suited to the salmon family, for trout weighing 1 or 2 pounds have 

 been taken this winter at Meaux itself. 



'' In the breeding of which I have the honor of giving you an account, 

 I noticed that the Sahno namayciisli grew with such rapidity that in 

 two months they were larger than the great European trout hatched 

 three weeks earlier. They also appeared more hariiy and more easy of 

 acclimatization." [Bulletin^ July, 1883, p. 426.] 



Landlocked salmon. — Mr. Eivoiron wrote from fichelles, depart- 

 ment of Isere, among other things, as follows: 



" In m\' last letter I told you that two-thirds of the fertilized eggs of 

 your landlocked salmon still remained to be hatched. The hatching 

 took place under the best possible conditions, and I had from the whole 

 lot only a very few spoiled eggs, which became white immediately after 

 the hatching. As a result of leaving one of the troughs exposed a little 

 too much to the sun, we lost about fifty. I put them in the shade, and 

 think that we have now lost only a hundred in all. They are veiy 

 pretty, quite large, and have been taking food for fifteen days. They 

 are fed on insects and the larvse of the gnat and the water-flea. We 

 can produce with our six basins about a kilogram \2^ pounds] of insects 

 daily." [Bulletin, July, 1883, p. 427.] 



Brook trout and California salmon. — Mr. Noordoek-Hegt, of 

 Apeldoorn, ^Netherlands, has written : 



" My fish-cultural establishment is succeeding. During the past week, 

 under the direction of the commission appointed by the Government, 

 Professors Hubrecht and Hoffman, I have set at liberty in the Yssel 

 Eiver more than 200,000 fry and 5,300 3'oung salmon a year old. I have 

 kept over 100,000 fry, of which it is probable that a part will also be set 

 free, and the rest will remain in my basins until they reach the age of 

 one year. I have a hundred California salmon {Salmo quinnat) which 

 were born in my basins and are now four years old. These fish have 

 never been to the sea, and yet they are in excellent health. Their 

 average length is 50 centimeters [about 19^ inches]. In October we 

 succeeded in fertilizing a number of their eggs, and the fry are now 

 doing wonderfully well. This fish [California salmon] is much more 

 hardy than the lihine salmon. 



" My experiments with the Salmo fontinaUs, an American trout, and 

 a very pretty fish, have also been successful. I had imported eggs from 

 America for two successive seasons. Nearly all of the eggs perished; 

 however, from the two lots, we saved several hundred young fish. In 



