858 BULLETIN OF THE BUREAU OF FISHERES. 



while Clinging to the exposed surfaces of the metal sides, apparently glued by 

 their own slime. 



I have personally observ^ed beef cattle fattened on two exclusive articles, 

 cotton-seed meal and cotton-seed hulls, the animals haltered in the stall till 

 slaughtering day; a profitable commercial accomplishment, doubtless, but 

 producing a kind of beef that I would turn away from, so far removed are the 

 two food articles employed from the usual, natural food of the beef animal. 

 In the nourishing of fish at cultural establishments a number of articles have 

 been utilized which were as foreign to the usual diet of the fish ^s the cotton- 

 seed products to the beef animal. The angle or fish worm is universally con- 

 ceded to be a natural food of fish, but the fresh-water shrimp (Palccnwnetes) is 

 yet a more rational one, and while the growing of angleworms in quantity by 

 cultural methods might be a doubtful investment of time as a fish-food creative 

 process, there can be no doubt that Palcemoneies exilipes is entirely capable of 

 being easilv and cheaply multiplied, requiring no better accommodations -than 

 a typical mosquito hole minus the larger natural enemies of the shrimp— i. e., 

 the native fishes — which the hole might contain. 



