CULTIVATORS PROPER 



481 



In addition to being a good implement to form a shallow 

 mulch and keep the surface level, it is very effective as 

 a weed-killer. 



Fig. 139. Small, one-horse grain drill for seeding in standing corn. Its use 



is equivalent to cultivation. 



Another classification, which has less relation to 

 utility than to the convenience and comfort of the 

 operation, is based on the presence or absence of wheels. 

 There is a strong movement toward the use of wheel- 

 cultivators, carrying a seat for the operator. These 

 have a wider range of operation as to depth and facility 

 of movement than have the cultivators without wheels. 



Still further, there is the distinction of shovels from 

 discs. Discs are used on the larger cultivators; seldom 

 on the small ones. 



Fig. 140. Meeker disc pulverizer. See also Fig. 37. 



EE 



