CHAP. VI. 



STEAM AND OIL MOTOR IMPLEMENTS. 



737 



Whenever practicable, especially on heavy land, it is better to plough 

 once during the course of tilling, so that a level bottom may be formed ; 

 if this is not done the ploughing is rendered much more difficult when 

 breaking up the land again after it has been cropped. 



Fig. 300. Fowler's Steam Roller. 



The steam harrow, such as the one shown in fig. 298, is usefully 

 employed for stirring and cleaning land which has been previously 

 broken up. It will take a breadth of from 10 feet to 15 feet, 

 according to the size of 

 the set, and can there- 

 fore be made to stir as 

 much as 50 acres in a 

 day. This is often a 

 great advantage, as it 

 takes the heaviest and 

 slowest work off the 

 horses, and a few good 

 days in a wet season 

 may be turned to . the 

 best account. If used 

 on fine tilths it is liable 

 to bury the couch when 

 run very fast, so care 

 should be taken in this Fig 3 01.-The Ivel Motor Hauling a Three- 

 respect; otherwise it is Furrow Plough, 



a first-rate implement. 



The combined implement shown in fig. 299 is a drill with heavy 

 harrows in front, and light seed-harrows behind to cover in the seed. 

 From 20 to 40 acres can be sown in one day 'with this machine, as it 

 can be driven at high speed. 



