SHARES' HAEROW. 



145 



Fiff. 154. 



plex character and cost have prevented its coming into 

 more general use. 



Shares' Harrow (fig. 154) is the most perfect of all im- 

 plements for pulverizing the freshly inverted surface of 

 sward land, to a depth two or three times as great as the 

 common harrow can efiect. The teeth being sharp, flat 



blades, cut with great ef- 

 ficiency ; and as they slope 

 like a sled-runner, they pass 

 over the sod, and instead of 

 tearing it up like the com- 

 mon harrow or gang-plow, 

 they tend to keep it down, 

 upper surface of the sod is 

 The price of 



Harrow. 



and in its place, while the 



sliced up and torn into a fine, mellow soil. 



Shares' harrow is about $20, but if furnished with steel 



teeth, as it should be, it would cost more. 



CULTIVATORS. 



The Cultivator or Horse-hoe is used for loosening and 

 pulverizing the soil among drilled crops, and for cutting 

 and destroying weeds. A usual form is shown in fig. 155, 

 which represents Fis:. 153. 



Ilolbrook's, one 

 of the best of its 

 kind. The wheel 

 in front regulates 

 the depth ; the 

 sides may be ex- 

 panded or con- 

 tracted sufficient- 

 IV to vary the HoWroolCs Horse-hoe or ChdUvator. 



width from fifteen to thirty-six inches ; they are reversible, 

 so that the soil may be thrown from or towards the row ; 

 ^nd the frame is high enough to prevent clogging with 



T 



