American Fisheries Society 95 



this purpose the fish-meal is best mixed with about a quarter 

 part of rye flour, and by the addition of water, cooked up to a 

 stiff pudding which, after cooking, is fed direct. If an ice- 

 cellar is available, it is recommended to put the pudding first 

 on the ice, so that it may become firm. The proceeding with 

 meat-meal is the same as with fish-meal. Only it is to be ob- 

 served that in this case, when cooked to a pudding with rye flour, 

 the meat-meal should receive the addition of one to two per 

 cent food-lime, (Futter-kalk), because the meat-meal contains 

 too little of the lime salts, which the fish need for making bones. 

 Instead of the lime, fisli-meal may be added, if the fish-meal was 

 made of entire fish ; in this case it contains enough lime from 

 the bones of the fish. A mixture to be recommended, would 

 then consist of one third fish-meal, one third flesh-meal and one 

 third rye flour, to be cooked to a pudding with the addition of 

 water. Since vegetable meal is less easily digested by trout than 

 meat-meal, it is advisable to use a quarter rye flour instead of a 

 third. 



With these foods must fish-forcing everywhere reckon, in 

 practice. What may occasionally offer in the way of waste ma- 

 terial, is not generally of great importance. 



Utilization of E artli w o r m s as 

 Food for Trout. 



(From I'Acclimation, 15 Dec. 1904.) 



Earthw'Orms play a pretty large part in the natural feeding 

 of trout, as of almost all other fish, for which these annelids fur- 

 nish a well-relished food and one which seems to be especially 

 wholesome. In the aquarium at the universal exposition at 

 Anvers in 1894, where were assembled specimens of most of the 

 fresh water fishes of Belgium, the new departure was made of 

 feeding only earthworms to all the varieties thus placed on ex- 

 hibition, and to this precaution are attributed the fine appear- 

 ance and perfect health of these fishes, which escaped the sick- 

 ness and large death rate which are usually severe in the case 

 of fishes transferred widely from free streams to the narrow 

 and necessarily less wholesome quarters of such an aquarium. 



For a long time now fishculturists have dreamed of utilizing 



