THE SALMON AND SEWIN. reo 
I shall here introduce to notice a few examples 
illustrative of the loss in weight which Salmon and 
Sewin undergo by the act of spawning. 
On the 12th of November, 1844, a Salmon was 
captured weighing fifteen pounds, the weight of the 
lobes of roe, which contained a large quantity of ova 
in an advanced state of development, being two pounds 
and three quarters. 
A Salmon captured on the 13th of November, 1844, 
weighed seven pounds and a half, and the weight of 
the lobes of roe, which comprised ova almost in a fit 
state to be deposited, was two pounds. 
A Sewin taken on the 18th of November, 1844, 
weighed five pounds and a half, the weight of the 
lobes of roe, which contained ova in an advanced 
state of development, being one pound and a 
quarter. 
On the 11th of October, 1847, a Sewin weighing 
half a pound was captured, whose lobes of roe, com- 
prising ova nearly ready for deposition, weighed two 
ounces. 
A Salmon weighing fifteen pounds and a half was 
taken on the 22nd of October, 1847, and the lobes of 
roe, which contained ova in an advanced state of deve- 
lopment, weighed three pounds. 
The lobes of roe, comprising highly developed ova, 
taken from a Salmon weighing twenty pounds, which 
was captured on the 10th of November, 1847, weighed 
three pounds and fourteen ounces. 
