226 Thirty-fifth Annual Meeting 
fish in small areas, or allow them to nest at will?” This is ques- 
tion number 6. 
President: We will take up question number 1. “Can any- 
one tell how to distinguish the sex of black bass with certainty 
otherwise than by eviscerating ?” 
Mr. Titcomb: That is answered in Mr. Reighard’s paper. 
Dr. Birge: It seems to me that most of those questions are 
pretty well answered in that paper. 
Mr. Titcomb: 1 think that question about impounding the 
adult fish might be a good one to answer here and have it put 
into the report. Mr. Leary is talking especially about the large 
mouth bass, and as far as I know the segregating of the parent 
fish from the main pond is being discontinued. 
Mr. Lydell: We now allow our large mouth bass at the Mill 
Creek Station, to seek their own spawning nest. We are certain 
to have plenty of natural spawning ground for them though, but 
we build no nests for the large mouth bass. 
Mr. Titecomb: At the Fish Lake Station, in Washington, we 
supply the large mouth bass with small piles of gravel scattered 
around, and they sometimes select them and sometimes they take 
the weeds. This is a station where the impounding idea was 
carried on most extensively, and as the apparatus which separates 
the adult fish from the principal part of the pond rots out, we 
remove it as not being at all necessary. The cannibalism does 
not come from the large fish. 
Secretary Peabody: Mr. Bower stated to me this morning 
that he thought the transferring, molesting or changing of the 
black bass was injurious, but I presume he was referring rather 
to the small mouth than the large mouth bass perhaps. 
Mr. 'Titcomb: We have ponds like those at Mill Creek; sepa- 
rated by a partition, lattice-work, or net-work, a small portion— 
one corner. We let the adults spawn in that corner and then the 
young fish are supposed to have sense enough to go out through 
these slats into the main pond and separate themselves from the 
large fish. That method was adopted because I think at the 
