TILLAGE MACHINERY 77 



due to lifting and turning the furrow slice, is carried upon 

 the carriage wheels with the well-lubricated bearings, 

 rather than upon the sole and landside of the plow, where 

 all is sliding friction. 



Care should be taken in hitching that the horses are not 

 too much crowded or spread too much, as in either case 

 good work cannot be done. When spread too much the 

 team cannot travel directly to the front so well, and the 

 line of draft is too far out to do good work. When 

 crowded, the horses are working at a disadvantage, and 

 the heat in warm weather will affect them more. When 

 not in use, the polished surface of a plow should be pro- 

 tected from rust by a coat of heavy grease or "axle 

 grease," and, like all other implements, it should be 

 protected from the weather. 



