206 



IRRIGATION. 



sections of several pieces, and it will be easy to bolt them 

 together by crossing the pieces of one section upon those 

 of another, or two more. The most desirable plan will 

 probably be to make them in triplets in the manner shown 



. 97. SECTION ROLLEB. 



in fig. 98, the dotted lines showing the manner in which 

 the joints of each section cross those of the others. 

 These sections may be placed upon an axle, as previously 

 described, and provided with a frame, upon which there 

 may be a seat for the driver. Various other forms of 



rollers may be devised which 

 will answer the purpose of 

 making furrows for those 

 crops that cover the ground 

 entirely, and which are sown 

 either in narrow drills or 

 broadcast. For such crops 

 it might be desirable to make 

 the drills, as well as the dis 

 tributing furrow, to run in 

 an east and west direction 

 when this is practicable. 

 The ground will thus be 

 shaded from the southern sun by the growing crop, and 

 the moistened furrows will be protected from a too rapid 

 evaporation. The furrows may be made to traverse the 

 ground between the drills, leaving the drills and furrows 

 alternate. 



Fig. 98. FORM OF SECTION. 



