94 now TO :^iAKE the farm pat. 



extent and effectiveness of the work is dependent in part upon 

 tlie number of teeth, which vary from twenty to fifty. {Fig. 89.) 

 The Hinge Harrow. The improved Hinge Harrow is an 

 effective implement in breaking up clods, disengaging roots, 

 and pulverizing the soil. It is usually made so as to take a 

 breadth of five feet. {Fig. 40.) 



Two pieces of framework are connected by iron hinges, in 

 the form of common barn door hinges, extending across the 

 frame, and bolted to each bar, helping to strengthen the whole. 

 This harrow may be folded double, or separated into two parts 

 for transportation or other purposes. Take the Geddes Harrow, 

 either side may be lifted, and it easily adapts itself to uneven 

 surfaces, as in passing through hollows, and over knolls or 

 ridges, so that it is always at work. It usually contains thirty 

 teeth, so arranged that they are not liable to clog. Thu frame 

 is made of white oak bars, three inches square. It may be 

 drawn by either end, so as to relieve the wear on the teeth. 



This, like any other harrow, should be moved rapidly over 

 the ground. A light, sharp-toothed harrow, moved quickly, 

 accomplishes far the best work. The work of the same im- 

 plement, moved quickly or sluggishly over the ground, differs 

 widely in its results. The implement should therefore be com- 

 pact in form, not too light, and furnished with sharp steel- 

 Dointed teeth. 



Shares' Harrow. For some purposes, the form known as 

 Shares' Harrow, is superior to all others. The advantage of 

 this lies in the form of the colters, which are broad thin blades 

 of cast iron; or, what is far better, of steel, because lighter, less 

 easily broken, and less liable to wear dull. These teeth, or 

 colters, incline forward, which prevents clogging with grass 

 roots, stones, or clods. There is a mould-board attached to 

 and forming the lower end of the colter. This harrow is six 



