CHAP. IV. 



PARTS OF PLOUGHS. 



709 



they are bound ultimately to take the place of swing ploughs. The 

 latter differ but little from wheel ploughs, save that the handles are 

 made longer in order to give the holder more control over the imple- 

 ment, for he has to perform two duties which the wheels discharge to 

 regulate the width and also the depth of the furrow. Fig. 254 shows 



Fig. 256. Ransome's Double Mould Board OP Ridging Plough. 



the greater length of handles to beam in the swing plough, as compared 

 with those of the wheel plough (fig. 255). 



In fig. 256 we illustrate the double mould-board plough for forming 

 ridges in turnip and potato cultivation. It may be made into a single-row 

 horse-hoe by taking off the mould-boards and attaching a cross-beam to 



SUBSOIL BODT. 



BIDGING BODT. POTATO BODY. 



Fig. 257. Extra Bodies to Fit on Ransome's Ridging Plough. 



carry hoes. Separate bodies are made, as seen in the illustrations in 

 fig. 257, to convert it into a subsoiler, or a potato-digging plough. 



Fig. 258 illustrates one of Ransome's double-furrow ploughs. It is 

 strange that these are not more used on light soils, as they certainly 

 economise both horse and manual labour. In some districts, notably in 

 the medium and lighter fens, they are much employed. 



