174 American Fisheries Society 



Professor Dyche: We expect to use vitrified clay pipe and cement 

 the joints, using methods that have proved satisfactory in other parts 

 of our state in connection with water-works and sewer systems. 



Mr. Worth : I hesitatingly make any suggestions to the gentleman 



because after many years' experience in this class of work I must say 



that I am highly delighted with what I have heard, for it seems to me 



.most practical, but I just wanted to call attention to that one thing of 



terra cotta joints made with cement mortar. 



Professor Dyche: The system that we will use has been operated 

 successfully in several parts of our state. 



Mr. Worth : I would like to make my point clear. If there is a 

 leak in the underground system of drainage beneath the bottoms of 

 the ponds the crayfish will work through the opening up into the pond 

 bottom and make an underground leak in the pond. 



Professor Dyche: I do not see where any crayfish could get in 

 between the pipes. They could not do much in an eight-inch pipe if 

 they went in with the water except to get out again. Crayfish could 

 not interfere with the flow of the water in our smallest pipes, which 

 are eight inches in diameter. The system is the same as the water and 

 sewer systems of the state. Prof. W. C. Hoad, engineer at the Univer- 

 sity, who looks after the sewer and water systems of the state, told me 

 when I brought up the subject of crayfish that there would not be a 

 joint in the entire system of piping that would admit of a crayfish 

 entering. He said that the joints would he absolutely proof against 

 such marauders. 



Mr. Worth : Tf the joints are good it will be all right. 



Pkoff.ssor Dyche: The engineer is to see every particle of Ibis 

 work done. Every earth embankment is to be built in a certain way; 

 they are to he kept level and be built in even layers; the engineer will 

 lie on the ground to see that every inch of work is properly done. The 

 specifications call for a great number of specially constructed and de- 

 tailed things. The engineer will see that the plans and specifications 

 are followed in construction. This engineer. Professor Hoad, is oiie 

 of the most competent and experienced men in the country and has 

 charge of all the sewer and water systems of the state of Kansas. He 

 has had his men working for about six months preparing these draw- 

 ings for me. We always got together on any part of the work and 

 studied it until we thought we knew what we wanted. We availed 

 i lurselves < if all in f« irmation we could command before we acted. After we 

 decided upon any plan or system or way, Professor Hoad and his assis- 

 tants worked it out with great care from an engineer's point of view. 



Mr. Geserich : flow many ponds have you? 



Professor Dyche: There are S3 in the new hatchery, 11 in the old, 

 and about 15 to hi' built after the new hatchery is finished. 



Mr. Geserich : Where do they drain? 



Professor Dyche: Tnto the Ninnescah River, which flows parallel 

 with and just north of the hatchery grounds: there are several places 

 where the drainage pipes empty into the river. 







