108 



SEASON 1874-75. 



overcoming obstacles in weeks which a little skill would have 

 removed in as many days. 



OVERFLOW SLUICE. 



-. ^ 



FIG. 47 scale , 3 S . 



Fio. 48 scale -fg. 



When the course for the waste water was finished, a rustic 

 bridge was formed of wood, and a second below in front of the door 

 of the hatching-house. 



A LEAF-SCREEN 



was placed 2 inches below the narrow end of the V-spout at an 

 angle of 10 degrees from the horizontal. This is a most valuable 



z- o" 



Fro. 49 scale 



