American Fisheries Society 167 



Mr. Titcoinb : The other costs about nine or ten. I wanted 

 to get at tlie ditferenee. Have yon had any trouble with the tulie 

 not centering properly at the bottom? 



Mr. Clark : I will ask ]\lr. Thayer. 



Mr. Thayer: No sir. we have them feed properly. 



Mr. 'I'iteond): Tliat is for eitlier pike perch or white fish? 



Mr. Clark: Yes sir. 



Mr. Titcoml): You never had this trouble that Mr. Carter 

 refers to? 



^Ir. Clark : Yes, lots of it, l)ut not caused by that tube. 



Mr. Titcoml): T would like to have you explain to Mr. 

 Carter Avhat he wants. 



jMr. Carter : I can explain to Mr. Clark tbat it is the tube. 

 Where these three feet are, there is a clieckcd flow of water, in 

 which the eggs do not nuive. Tlu're is a A^-shaped mass of eggs 

 beginning at the bottom, where the feet arc. and gradually ex- 

 tending to the top of the jar. 



Mr. Clark : T would like to ask Mr. Carter, if he knows posi- 

 tively it is not some sediment of some grass that hangs on, that 

 does that ? 



^h. Carter : I know that. 



Mr. Chirk: You know tluit it is not. You know it is noth- 

 ing l)Ut tliosc ft'ct ? 



Mr. Charter: I know it is nothing l)ut those feet. 



Mr. Clark: Then I have nothing to say. 



Mr. Carter: T will ask :\lr. Fullcrton. 



Air. Fullcrton : W'c liad tlic same experience that Mr. Cartel" 

 did, and thi'cw tlie tilings av/ay. 



Mr. Clark : May \ ask Mr. Fullerton, how lie keei)s his glass 

 tube from the Ixittom. 



]\Ir. Fullerton: Siniijlv bv cutting the I'ubher. 



