58 
Trout and Gravling. 
By G. Moritanp Day 
(Read before the Society, February 13th, 1891). 
first published in 1653, and when it reached its fifth 
edition an appendix appeared with it, entitled, 
< Tnstriesatis how to Angle for a Trout or a Grayling in a Clear 
Stream,”’ by a gentleman named Charles Cotton, who lived in 
Dovedale, and had been adopted as a son by Izaak Walton, 
whose name is still preserved in Dovedale by the well-known 
‘‘Tzaak Walton” Hotel. Since the days of Izaak Walton, the 
number of people who take an interest in fish and fishing has 
increased prodigiously, and there are now so many people who 
go fishing, that unless some steps were taken to replenish the 
stock of fish, in some of the rivers there would soon be very few 
left to catch. There is what is termed a close season for fish, 
that is, they may not be caught during the time when they are 
spawning ; but besides this it has been found necessary to 
artificially breed and rear a stock to turn into the rivers. The 
monks of old were evidently fish culturists, for attached to most 
of the old ruins of monasteries, remains of fish ponds are to be 
found ; but the fish that were reared in them were principally 
carp, tench, and fish of that class, and not trout or grayling, 
which require a clear running water in which to lay their eggs. 
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