American Fisheries Society. 94 
come to my knowledge to any great extent, as affecting trout. 
We have the parasite which badly affects the calico bass, rock 
bass, and sun fish, in many places; but thus far the trout seems 
to have escaped, except in isolated cases; and I do not want Mr. 
Whish’s parasite to come over to Pennsylvania. 
Our hatcheries too, have been thus far remarkably free 
from any disease, excepting in the old Allentown hatchery, 
which was abandoned, and there I think we could trace it to 
carelessness in not changing blood for 17 years, and the young 
fish lacked blood corpuscles, and were weak and died off by 
thousands. We had two or three very bad epidemics, at this 
hatchery now abandoned, both of which were investigated by 
the United States government, but | hardly think that we are 
likely to lose our trout, provided due care is exercised to prevent 
water pollution. Until this year, Pennsylvania was undoubtedly 
at the foot of all the states that did anything in the way of 
preventing water pollution. Whenever there was any effort 
made to procure legislation, to put a stop to the pollution of our 
streams, a howl arose from all parts of Pennsylvania, from the 
owners of industrial establishments, who exclaimed, ‘What, are 
you going to destroy our industries for the sake of a few fish!” 
But the legislature of Pennsylvania has begun to take a different 
view of the matter, and this last winter there was a decided 
change, and the prospects of continued water pollution are not 
very good. Heavy fines and imprisonments we find to be very 
potent arguments with the owners of industrial establishments. 
I think the day is not far distant when the tannery man and the 
chemical man and the creamery man will find it possible to 
discover some means by which their business can be conducted 
without pollution of streams. In fact there is a plant now being 
erected in one of the northern counties where the waste water 
from the tan bark is taken up and distilled, and the water then 
run back into the stream, so that there is hope that in a few years 
we shall be rid even of the tannery nuisance. 
Mr. Marsh: I would like to ask Mr. Whish to what extent 
he has actually noticed the death of strictly wild trout in the 
Adirondack streams ? 
Mr. Whish: I have been watching the situation for four 
years, and what is reported to me is this: That fewer trout are 
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