IMPLEMENTS FOR FABM AND GAIIDEN. 171 



three horses. The smallest size is mostly used for gar- 

 den culture. 



Ridging or Double Mould-Board Plows are 

 useful for opening furrows to receive manure, and for 

 closing the same, forming alternate ridges upon which 

 to drill, and for plowing or hilling up, for shallow 

 ditching, and for listing corn. 



Sod and Subsoil Plows are those in which two 

 plows follow each other on one beam, one plowing the 

 sod and the other the lower soil. Too heavy for ordi- 

 nary use. 



Cabbage Plows are small, one-horse plows, made 

 with a low and short mould-board, so as to plow close to 

 the row without disturbing the plants. 



Potato Plows, made for plowing out potatoes, are 

 constructed with high standards to prevent clogging, 

 have double mould-boards, from the rear of which prongs 

 or fingers extend, which separate the potatoes from the 

 soil. 



Potato Diggers are machines made with a wide 

 shear or scoop in front, running under the potato hills, 

 raising the potatoes to a large sieve or grate in the rear, 

 from which they are carried over and deposited in con- 

 venient position to be lifted. Capacity with two horses 

 said to be four to five acres per day. 



Harrows. The harrow is the next important im- 

 plement in the preparation of the soil ; the old style 

 heavy wooden beam harrows are being superseded by the 

 lighter iron and steel frame harrows. Many of these are 

 arranged so that the teeth may be changed from a per- 

 pendicular to a slanting position ; they then constitute 

 what is called smoothing harrows. The wooden frame 

 harrows are made square and double, with steel teeth. 



Disk Harrows. In addition to the harrows with 

 teeth, others are made with revolving disks. In tearing 

 old unbroken sod, hard baked or crusted land, black 



