48 POTATO CULTUEE. 



strips, D, D, are of the same thickness as the plow-beams. 

 Each one of these four draft-pieces is strongly braced ; one 

 brace is shown in the cut. A bolt runs through G, and 

 through a hole in the plow-beam, to draw by. A number of 



i 



FIG. 3. FIG. 4. FIG. 5. 



holes are bored in the pieces G, so that the plow can be set 

 to run deeper or shallower. The ends of these four pieces, 

 G, are shown in Fig. 1. There is only one piece, H, to each 

 plow. The ends of these are shown at the rear of axle in 

 Fig. 1. They are braced on the outside to the end of axle. 

 A bolt running through one of the holes, shown in the lower 

 end of H, holds a little block on which the plow-beam rests ; 

 and these blocks, one under each plow-beam, prevent the 

 plows from going too deep, while the weight of driver, on 

 the seat, keeps the plows down tight to the blocks. This 

 makes the marks always of one uniform depth. The handles 

 are sawed off the plows, and the two plows are bolted firmly 

 together by means of cross-pieces, the ends of which are 

 shown in Eig. 2. The seat, K, is attached to one of these 

 cross-pieces in the center, in line with the pole. Two of the 

 handles that were sawed off are bolted under M, and be- 

 tween the cross-pieces at the base of seat, and are used to 

 lift the plows at the end of the rows. A spring latch, at- 

 tached to the cross-piece at the base of the seat, catches on 

 a screw-bolt (shown at the rear end of pole in Eig. 1), when 

 the plows are raised, and holds them up. To let the plows 

 down, take hold of the handles, and press finger-iron under 

 side at I (Eig. 2). This is connected with the upper end of 

 spring latch by a piece of copper wire. 



Eor making a mark to drive by (the first time through use 

 stakes, of course), a strip of wood is fastened by a bolt near 

 the end to the center of cross-piece M. In the other end of 



