FAUM niPLEMEXTS. 97 



feet wide when expanded, but may be closed up to two feet, for 

 transportation. It is usually made seven feet long, and weigbs 

 about one hundred and fifty pounds. {Fig. 41.) 



For pulverizing the surface of sod land we have found no 

 harrow equal to this. The sharp flat blades, or teeth, sloping 

 backward like a sled runner, cut the soil very effectively, pass 

 over and press down the sod, while, at the same time, shaving 

 off and grinding up finely the upper surface. A single passage 

 of this implement will mellow the surface more than twice as 

 deeply as the ordinary harrow; acting also like a roller, to 

 press and keep down the grassy sod. 



Several forms of rotary harrows have been invented, but 

 arc not likely to come into general use. 



Horse IIoes and Cultivators. Anothei class of imple- 

 ments combine the principles of the plow and the hairow. 

 These are the Horse Hoes and the Cultivators, which have ren- 

 dered very important aid both in the original preparation of 

 the soil, and the after- cultivation between the rows of corn or 

 other crops. {Fig. 42.) 



One of the most useful of these is known as Knox's patent, 

 as made by the Ames Plow Company, of Boston. It is de- 

 signed to hoe or cultivate corn and root crops, cotton, and the 

 hoed crops generally. It is very light, und easily managed, 

 with the draught of one horse, and thoroughly pulverizes the 

 surface, cutting up weeds, grass, etc. It is steadied by a forward 

 tooth, or colter, the two middle teeth being miniature plows, 

 which are easily changed from one side to the other, turning 

 the earth from, or towards the rows, as may be desired. 



The frequent use of the cultivator among hoed or drilled 

 crops, cannot be too highly recommended. It is the easiest and 

 quickest way to keep down the weeds. It has been said, with 

 much show of truth, that one day's work in the cornfield, with 



