SALMON. 



11 



a perfect idea of tliis ingenious contrivance without a model. 

 It consists of one side of the river, under a weir or ' cauld," 1 

 being separated from the main stream, and intersected by 

 transverse pieces of wood, or stone, from each side, crossing, 

 perhaps, two- thirds of the width, and with considerable inter- 

 vals between the opposite intersections. The fish, it seems, 

 both from the experience on the Teith, and at another dam 

 at Blantyre, on the Clyde, immediately adopt this staircase 

 in ascending the rivers, and, finding- resting-places between 

 the intersecting materials, abandon the other parts of the 

 stream for this contingency. Some amusing remarks were 

 made on this communication, which is one of infinite value to 

 local mill and fishing interests." 



The fish having at length gained the upper and shallow 

 pools of the river, preparatory to the important operation of 

 depositing the spawn in the gravelly beds, its colour will 

 be found to have undergone considerable alteration during 

 the residence in fresh water. The male becomes marked on 

 the cheeks with orange-coloured stripes, which give it the 





