American Fisheries Society. 139 



it is four feet, and 100 feet further it is nothing. At the point 

 last mentioned is m}- inlet pipe. 



Mr. Clark : The point I wish to raise is this : If you could 

 have any depth you want, which I can, up to fifteen feet, what 

 would you make the depth of this kettle? 



Mr. Leary : I would make the depth of that kettle as great 

 as I could in your climate, providing that I could draw the water 

 out of that pond. If you can make it ten or fifteen feet and 

 draw the water off, make it so ; but you want to have your ponds 

 so that you can draw them off and clean them. 



Mr. Clark: The forty feet of spawning area you would liave 

 from three feet to nothing. 



Mr. Leary: Yes, sir. 



Mr. Titcomb : Forty feet margin ? 



Mr. Leary: Yes, more if you want to. The center of this 

 pond runs down from six feet then to four feet and nothing and 

 comes off either way to nothing. The object of having all that 

 shallow water is that it warms up early in the season and pro- 

 duces a large amount of insect life that the bass feed on, and it 

 produces an early growth of plants, providing shelter and feed- 

 ing gi'ounds for the fry. 



Mr. Clark : I would like to ask the ofher bass men if what 

 Mr. Leary has said they concur in, especially as to the depths ? 



Dr. Hensliall : I would not recommend anything more than 

 twelve feet in your climate. 



Mr. Clark : I will take care of the climate. 



Mr. Leary : I think you want more than ten or twelve fee: 

 for hibernation. 



Mr. Clark : Do we want a good depth of water, or compara- 

 tively shallow water, for the bass ? The climate is another ques- 

 tion. We know what we have to provide for, and the question is, 

 how much depth of water do they require ? 



Dr. Henshall : Not less than twelve feet. 



Mr. Clark : Is that the general o})inion of the bass men 

 here ? 



Mr. Lydell : I am not prepared to state, because we have 

 not a pond with more than six feet of water in it ; but we arc 

 getting good results from it, and we arc further north than 

 Xorthville. 1 think ten or twelve feet will do all right ; but our 



