224 



SEASON 1876-77. 



clogging it. The screens were fitted at a very slight angle, and 

 the water rose through them (Fig. 156). This is the true principle 

 of all inlet screens, as the trout cannot hurt themselves by jumping 

 or falling on their tough bellies. These boxes were connected with 

 the dividing-box two (those for the east and west 130-feets) by a 



FIG. 156 scale &. 



short covered spout, and that for the centre 130-feet by a 10-inch 

 pipe, the reason being that a high bank or mound lay between the 

 dividing-box and the 130-feets, and I did not care to go to the 

 expense of clearing it entirely away. Below the trap-box screens 



FIG. 157 scale ^. 



of the east and west 130-feets an aqueduct was formed in the 

 ground, of cement, into which the screens discharged, by a fall of 

 3 to 4 inches. Fig. 157 is a diagram of the trap-box, with screen. 



