448 Effective Farming 



they are to be used. More walking plows are found on Ameri- 

 can farms than any of the other types. Fig. 194 shows the 

 parts of a walking plow. These should be learned by every 

 one who ever expects to operate a plow. 



Sulky plows. Sulky plows are those attached to a frame set 

 on wheels. The frame serves to regulate the depth of plowing. 

 Usually there is a seat on the frame where the operator can ride. 

 The implement shown in Fig. 195 is termed a reversible sulky 

 plow. It is provided with two plow bottoms, right-hand and 

 left-hand. When plowing back and forth across a field, one 

 of these plow bottoms is used for a trip one way and at the end 



FIG. 197. Disc plow. 



of the furrow the implement is turned and the other plow bot- 

 tom used for a trip the other way of the field. 



Gang plows. Plows made to turn two or more furrows at 

 once are known as gang plows (Fig. 196). They are moved 

 by horses or tractors and are very efficient machines for rapid 

 plowing. In Fig. 196 is pictured a ten-bottom gang plow pro- 

 pelled by a tractor and followed by a corrugated roller. An 

 outfit like this will turn over much land in a day. 



Disc plows. A rotating disc is used instead of a curved 

 moldboard in the disc plows (Fig. 197). These implements 

 are especially useful in heavy soils and are popular in many 

 localities. 



