198 FISH HATCHING. 



of water, and by frequently renewing the 

 water on the way, they arrived as lively at 

 the end of their journey as they were at the 

 beginning. Those were the first salmon that 

 had ever been known to inhabit the Biver 

 Robe, a tributary of Lough Mask. More 

 than this ; in order to enable these young 

 fish to migrate to the sea, it was neces- 

 sary that a fisli passage extending about 

 two miles in length should be made over the 

 rocky ground between Loughs Corrib and 

 Mask. This great undertaking has since 

 been successfully completed by the Messrs. 

 Ashworth, at a cost of upwards of 650/., under 

 the able direction of Mr. Roberts, C.E., by 

 which means salmon are now enabled to pass 

 up and down freely, and they have already 

 been seen in the fish passage or stairs, and 



