PLAN OF MEADOW. 



135 



to the ground or finding its way into the drain, either 

 by percolation through the soil or by surface flow at the 

 foot of the field or plot. The form of the furrow is seen 

 at fig. 62. It may be two feet wide and four inches deep 

 As there is no loss of crop in this case, the space occupied 

 by these furrows is of no consideration ; the wider and 



Fig. 62. FORM OF WATER FURROW. 



shallower they are, however, the more permanent they 

 will be, and the less subject to injury by trampling, should 

 the meadow ever be pastured. The arrangement of the 

 meadow would then be a main supply-canal, so located 

 that the water may be diverted from it to supply any of 

 the subordinate feeders in turn by means of the distribut- 



Q C b C 



Fig. 63. PLAN OF IRRIGATED MEADOW. 



ing canals. See fig. 63 ; a, a, being the main canal ; b, b, 

 distributing canals ; c, c, drains. The flow may be di 

 verted by means of the hand-gates already described, or 

 by placing obstructions in the main canal, such as bricks 

 or sods, as shown in fig. 64. 



Where there is an inclination of the surface insufficient 

 to amount to what would be called a slope, a somewhat 



