256 



SEASON 1878-79. 



that no fish could go down till the grating was removed ; but 

 experience has shown this superfluous, and its only action was to 

 delay the emptying of the pond ; the gratings are now removed 

 (Fig. 175). As a matter of fact, few fish descend the pipe till the 

 pond is so nearly empty that the grating would have been removed 

 as a matter of course ; and secondly, if any fish do go down the pipe, 

 it is of no consequence, as they are in practice as safe in the pipe as 

 in the pond or well. No one who has not witnessed the slow and 



Flo. 175 scale J,. 



leisurely way fish descend a pipe, tail first, through which water 

 is rushing at a speed which apparently carries all before it, can 



Fio. 176 scale , 



believe the absolute immunity from injury enjoyed by trout under 

 the circumstances. But of course it must be borne in mind that 



