REARING THE YOUNG FRY. 1 69 



deal of time and trouble in feeding, and seems to be 



[Translation.] 



Self-working Machine for feeding Trout in Artificial Fish Breed- 

 ing Establishments. 



As proprietor of a small Trout Breeding Establishment,^ I 

 have not neglected to become a member of the German Fish 

 Society, and have also read with great interest the celebrated 

 works on this branch of husbandry, and have endeavored to col- 

 lect all the information possible in this direction. 



All was favorable and encouraging until I came to the com- 

 mencement of the artificial feeding of the fish, but then I came 

 to a standstill. Difficulties placed themselves in my way, and I 

 began to think that I should be obliged to give up the propa- 

 gation of my trout. It was in the winter of 1873 a "d 1874, as 

 I was preparing myself for the coming spawning season, that I 

 came across the new work, " Domesticated Trout," by Livingston 

 Stone, which again encouraged me to succor my little fish. 



On p. 153 of his work Mr. Stone writes thus : — 



" It would be a great improvement in the way of feeding the 

 young fry, if you could prepare some self-acting contrivance 

 which would feed out the required amount of food gradually and 

 continually all day.'' 



I tried my best to carry out the ideas of the celebrated Amer- 

 rican fish culturist, and constructed the enclosed photographed 

 feeding machine. Now, after using my machine for two years 

 with great advantage, and finding it for all fish culturists indis- 

 pensable, I wish herewith, for the use of all, to bring it to gen- 

 eral notice. 



The arrangement of this machine consists of a small water- 

 wheel which works itself. 



A small box which receives the food (finely chopped) is filled 

 two thirds full with water, the food put in, and while the machine 

 is in motion equally mixed with the water by means of a rotating 

 metallic stirrer. The height of the water should always remain 

 the same if possible. This is accomplished by means of the 

 pipe in the box by which the outflowing water can be arrested. 



On the outside of the small box is a lever valve, which by 



