102 



American Fisheries Society 



An Aerating Device. 



BY JOHN W. TITCOMB, 



State Fish Culturist of New York. 



The New York State Conservation Commission recently had a 

 live fish exhibit at the Rochester Exposition. The water supply was 

 from a large lake inhabited by lake trout, white fish and several 

 other species, but as supplied to the aquaria through the city water 

 mains it evidently was lacking in air or something of that sort. 

 We had no difficulty in keeping most of the fish in good condition, 

 but we lost small-mouth bass continuously for the first two days 

 of the exhibit, or until the city plumber who had installed the 

 piping came around with this aerating device. It is patterned 

 after the Bunsen gas burner. The water supplied to the aquarium, 

 passing through this aerator, sucks the air through the holes in 

 the union and carries it down into the aquarium, say fifteen or 

 eighteen inches. When the pipe connected with this aerator was 

 extended to the bottom of the aquarium, a depth of from 23^ to 3 



/^ 



ff/r /nfake 



LONGITUDINAL SECTION 



ELEVATION 



Plan of aerating device, as devised and constructed by Mr. Norman Price, 

 Rochester, N. Y., reduced one-third. 



