_” i“ S5eQrrr Ey 
339 
and thus give the appearance of ova or milt being found in 
the par.” 
Mr Buisr (Stormontfield’s Piscicultwral Experiments, 1867,) 
altered his mind with respect to pars, due to his having been 
engaged at the Stormontfield ponds, where experiments were 
being carried on, and which gave him an opportunity of observ- 
ing the transformations in the par with age. After remarking 
that at one time he was an advocate of the popular dogma that 
the par was a distinct fish by itself, one proof being that in 
the month of November, 1832, a male par had been brought to 
him with the milt flowing out. “The par in question was really 
the young salmon of the second year, which had not then gone 
to the sea. At Stormontfield we have repeatedly seen a young 
salmon, which remained in the rearing pond till the time of 
migration in the second year, though not the size of a man’s 
finger, yet with such a state of milt in the breeding season that 
we have impregnated eggs of the full-grown salmon with it, 
and thereby produced young fish. Such is not the case with 
the sister fish of the second year in the pond, as not even the 
rudiments of roe can be traced in them.” 
I do not intend referring further than I have, at present, to 
the par of the sea trout and the experiments which have been 
tried with reference to it, except to observe that on May 17th, 
1874, 133 fish, averaging about seven or eight inches in length, 
were selected as good examples of “ orange-fins,” and placed 
in artificial ponds at Carham. On May 2nd, 1879, after five 
years’ confinement, 30 of them were weighed, measured, and 
marked, and returned to the Tweed. On June 4th one of these 
fish, marked with silver wire, was captured near Birgham, on 
June 4th or 5th, and sent to Mr Brorugrston, of Kelso, and 
was a common trout; and he states another was taken near the 
same place, on or about July 17th. The question of identity 
or the reverse of all the forms of fresh water and sea trout as 
one species, subject to great variation in races and even indi- 
viduals, is too long to be treated of in this place in its various 
bearings. 
I will now briefly allude to the investigations carried on by 
Sir James Ramsay Greson-Marrianp, Bart., most of which 
