LAYING OUT FUKKOWS. 



141 



yenient. To trace the course of these distributing fur 

 rows is very easy, if the common level, already described, 

 is used. The course, as thus laid out, will form a suc 

 cession of angles, the apex of each of which will be 

 marked by a small peg driven in the ground. To pre- 



Fig. 68. LAYING OUT FURROWS. 



vent abrasion of the furrows at these angles, gentle curves 

 are to be made from point to point. These curves will 

 conform exactly to the level of the furrow. Fig. 68 illus 

 trates the method of laying out these curves. If the 

 slope is not so great as to permit washing out of the soil, 

 the feeding canals may be carried straight down it. If 

 the slope is too great for this to be done safely, the feed 

 ers will meander in the same manner as the furrows, or 



FURROWS ON A REGULAR SLOPE. 



they may be made to follow a diagonal direction across 

 the slope, so as to bring the fall within proper bounds. 

 The meadow will then appear as in fig. 69, in which a, 5, 

 are the canals or feeders, and the lateral lines the furrows. 

 But the least troublesome and cheapest method is by in 

 clined furrows carried in the straight lines across the 

 planes of level, and supplied by feeeders carried either di- 



