Ha rroi^ 's — Bes/ P u hcrizcr. 



89 



same work as done by the A pattern ; and much more 

 expeditiously, and thoroughly; requiring, it is true, 

 more power from the team, but not in full proportion 

 to the increased work accomplished. Its jointed or 

 hinged construction is favorable to its use on uneven 

 ground, but is not especially advantageous in any service 

 the market gardener is likely to require. 



For pulverizing the soil following the ploughing 

 the La Dow disk or wheel 

 harrow is by far the best. Its 

 merits have been recognized 

 in reports published by the 

 United States Commissioners 

 of Agriculture; and there are 

 said to be many thousands of 

 this form of harrow now in 

 use in this country and abroad. 

 The inventor furnishes the 

 following description : The 

 disk gangs, being united by 

 a series of universal joint 

 boxes, allow each part to ac- 

 commodate itself to uneven surfaces. Working in a 

 holow or dead furrow, or over ridges and obstructions, 

 the disks adjust themselves to the surface over which 

 they pass, cutting an uniform depth, and drawing more 

 easily than if the gangs were rigidly connected. The 

 inner disks of each gang are brought near to a cutting 

 edge with each other, throwing the loosened earth in 

 opposite directions outward, thus escaping the ridge in 

 the centre, which has been a great objection heretofore. 



La Dow Disk Harrow. 



