EUS IS VND riSTORY.OF- TEE BROWN, TROUT 
(Salmo farto) 
To the angler the common yellow trout is by far the most 1m- 
portant fish that swims, for more people capture it than any other 
living thing. The pleasure derived from its capture, too, surpasses 
that of any other sport, while interest in the study of the trout seems 
to be inexhaustible. Its shape and colour are so beautiful that no 
artist can reproduce them. Many naturalists maintain that there are 
different species of trout in the British Islands—Loch Leven trout, 
Gillaroo trout, tidal trout, and many others; but from a close study 
of all these trout for the last forty years, | have come to the conclusion 
that there is only one species of trout in Great Britain, and that in 
the different varieties the differences are caused by the nature of the 
water in which they are found and by the food they eat. I therefore 
hope that what I have to say will help to solve some of the mysteries 
connected with this wonderful trout. 
The spawning time of trout depends on the locality, and begins 
about the 15th of October and continues till March. The spawn is 
deposited in the gravel, where this is fairly fine, and the time it remains 
inthe soravel depends on, the temperature, If the temperature 
averages 54° it remains thirty-two days; if 50°, forty-seven days; if 43°, 
eighty-nine days. The fry when hatched come up through the gravel, 
and like the salmon have a sack attached to their bodies. This 
sack contains enough nourishment to sustain them for several weeks 
before they are able to feed. On their beginning to do so they grow so 
rapidly that if they are hatched on the rst of March, and the feeding 
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