472 



EUROPEAN AGRICULTURE. 



Gang of Light Seed-Harrows. 



11 The frames are of ash, and as light as 

 possible, with iron teeth, being but three 

 inches long, exclusive of the part which 

 enters the wood-work. They screw 

 into the balks in the manner shown in 

 the annexed figure. 



&quot;It should be observed that the above four harrows are amply 

 sufficient to cover a twelve-furrow stetch or ridge, of 108 inches, 

 but three will be wide enough for a three-furrow stetch of 90 

 inches, exclusive of a small portion of the furrows. If for some 

 purposes the teeth be found too thick, every alternate tooth may 

 be taken out; but for general purposes this will hardly be neces 

 sary. The two horses require, on this plan, to be kept quite 

 level ; for, if one be suffered to go in advance of the other, a 

 diagonal line is produced, by which the teeth will be made to 

 follow each other, instead of cutting fresh ground. I am aware 

 that, by the usual construction of harrows, a diagonal line of 

 draught is required, in order to throw the teeth into a proper 

 working position ; but I am strongly inclined to the opinion, 

 that the correct working of the implement ought to depend on 

 its construction, and not on any particular mode of working it. 

 Besides, the system of keeping one horse in advance of his 

 partner is bad in principle ; it is an unequal division of labor, 

 the fore-horse being compelled to do more than his share of the 

 work, which, under any circumstances, is always heavy enough. 



