Plate IV. 
Fig. 1. x39 
Scale of a Smolt. which feafs passed two-years 
in the river before itsjfiigration to the gca. 
m 
V.>• 
* * V • '' H ' y 
-V; y v if 
' " >/• 
- - *. / . ? 
' #* 
"ft ' 
Fig. 2. x8 
Scale of a Grilse, weighing 31hs., length 211 inches, age 3-2- 
years. Caught in Falls Pool, Oughterard River. The 
two years of river life are well marked, also the first winter 
in the sea at the end of the third year. 
