54 



THE BOOK OF THE LANDED ESTATE. 



implements are at work in the soil, while the other is in the air ; and on 

 returning, that which was in the air is put into the soil, and the other is 

 thrown up, thus going on alternately. 



The Messrs Fowler also manufacture a system of steam-ploughing 



FIG. 4. 



apparatus with two engines. There is an engine placed at each head- 

 land ; the one engine pulls the plough towards it, and when the- imple- 

 ments are close up to the engine on the one side, that engine remains 



Fio. 5. 



stationary until the other engine pulls the implements back again. In 

 each case the engine which is not at work pays out the rope and moves 

 forward into position for the plough returning. 



