214 Thirty-Third Annual Meeting 
sent word in regard to the disease to the United States Bureau of 
Fisheries, and the Bureau sent a man to look into the matter. 
He remained there quite a while and went over the matter very 
thoroughly. He made his report and even he seems to be some- 
what at sea as to the causes of the trouble. Undoubtedly these 
fish were decidedly anemic, but what caused that anemia in the 
fish we do not know. We had trouble several years before—I 
think during the great blizzard we lost something like 2,000,000 
in about two weeks. I submitted a paper at that time to this 
society. We were rather of the opinion that it was due chiefly 
to long inbreeding, and I am still of the opinion, although it has 
necessarily modified on account of last year’s experiences, where 
we had fish that had come from other places which also were 
I beheve that one 
of the things that we ought to study more carefully is the dis- 
eases of the fish. We know very little about them. 
There was a little point during Dr. Johnson’s remarks that 
reminded me of another matter that I would like to ask about, 
and that is something in regard to the rainbow trout. We have 
felt that it was a good fish to introduce into our waters, and 
many years ago we propagated them to a very large extent, but 
after a number of years we found they did not seem to get along 

seized with and died from this same disease 
in the streams, and further investigation showed that in the 
ponds a large percentage were barren, although those barren one 
year might not be barren the next. The result was it seemed to 
be an expensive proposition to raise the fish, and they did not 
seem to do well in the waters of Pennsylvania, although it is one 
of the great trout states in the union. ‘Therefore it is curious 
why they did not seem to propagate naturally. There were two 
or three streams in which apparently they were doing very well, 
and we so reported, but when we came to examine into the mat- 
ter a little more closely we found that what was seemingly the 
young fish propagated naturally, was, as a matter of fact, fish 
that had been planted in there by persons who applied for those 
trout for other streams and put them in that particular stream ; 
therefore we were getting various sized California trout that had 
been planted; but elsewhere there was no evidence that the fish 
increased naturally in those streams, and I would like to know if 
there is any one can tell me why that is. 
