470 



STATE BOARD OF AGRICULTURE. 



is likely to be true if the area is not over one hundred to two hundred 

 feet in width, provided, the soil is an open one. If the width is greater 

 than two hundred feet or if it is as little as one hundred feet, but with 

 a relatively impervious soil, it is probable that more than one line will 



Fig. 1. One system of laying tile. 



Fig. 2. A common system of laying tile. 



Fig. 3. In which the laterals are laid at right angles to the main. 



be required. If the one line is not sufficient, then a system should be 

 introduced, and the style of the sj^stem will depend upon the surface 

 of the area, the shape of the area and i^ossibly upon the notion of the 

 one who is installing the system. 



Figures 1, 2, and 3, illustrate two general systems employed in tile 

 drainage. All sorts of combinations of these are found in actual prac- 



