THE IMPLEMENTS OF THE FAKM. 



dragged from two whipple-trees suspended from a beam, 

 with a pair of steerage wheels and a seat for the driver at 

 each end. The tines are so formed at the foot of each as 

 to work either way as they go to and fro. 



Rollers are of iron or wood, or hollow cylinders to he filled 

 with water or sand. They are either made in pairs on a 

 common axle for turning, or in one short length. To permit 

 of hack and forward rotation in turning, so as not to injure 

 plants, a numher of short cylinders may be placed on a com- 

 mon axle. Drill pressers are so made that they can be set 

 nearer to or further from each other on their axle, to suit 

 the breadth of the furrow slices, 2, or more, which they com- 

 press. Drill rolls, intended to press the ridgelets in which 

 potatoes have been planted, or on which turnips or mangels 

 have been sown, have a concave periphery, as of two cones on 

 one axis with their bases outwards. Clodcrushers are com- 

 posed of numbers of narrow-toothed cylindrical rings, so 

 centred on the axle that they all break the clods below, but 

 clear each other of any earth that adheres to them as they rise 

 from the ground rotating above the axle. Norwegian har- 

 rows, in which two or three parallel spiked rollers are framed 

 together so as to touch one another's teeth on being 

 revolved, are of the nature of clodcrushers, and ought to 

 be so designated, for, from their cylindrical action, they 

 neither harrow nor cultivate. In point of construction they 

 are improvements on the old spiked rollers. 



Seed and Manure Drills, and Distributors. The merit 

 of the drill consists in its uniform discharge of the seed and 

 manure by different coulters, and the proper depth at which 

 both are deposited. The seed and manure thus being placed 

 must also be protected from wind and rain during the process. 



