442 



OF HORSE-HOES. PartlV. 



CHAP. m. 



Of HORSE-HOES^ 



S E C T. I. 



Defcription of M. Duhamerj- Light Plough. 



TH E defign of ftirring the alleys has been fo often, and fo fully, 

 explained in the former parts of this work, that it would be 

 needlefs to enlarge upon it further here. We fhall therefore proceedi 

 to give a defcription of the inftruments ufed for this purpofe, begin- 

 ning with M. Duhamel's hght plough. 



The hind part of this plough is exaftly like that of a common 

 plough, except that all the pieces of which this is compofed are 

 lighter. 



AB, Pl.Yl.fg. I, is the beam of the plough: A is what is 

 called the heel. The part of the beam from the coulter to B is 

 round: the reft of it, to A, is eight fquare. 



C, the coulter, which is fixed in the beam by wedges. The beam- 

 is ftrengthened on each fide of the coulter, by two iron hoops. 



D, the handles, which are joined to the beam towards their bot- 

 tom, and of which the lower extremity is fixed into a piece of wood, 

 AE, called the ground-reft. This laft terminates in a point a little 

 beyond E, in order to receive the iron ftiare F, which that extre- 

 mity of the ground-reft is covered with. G, is the ftieat, which 

 is cut forked out of a piece of elm, and of which the two ends are 

 taftened with a wooden or iron pin over the ground-reft, as at £ on 



-the left fide. 



Hf is a piece of wood, the fore part of which is thinned to an edge : . 

 the upper part of it is fixed to the beam, and the lower part to the. 

 ground-reft. 



GIH is a board cut fomewhat ronnding, and placed on the right 

 hand fide of the plough. It is called the mould-board; and its ufe 

 is to turn over to that fide, the earth which has been cut by the 

 coulter, and opened by the (liare. 



Underneath H, is a piece of wood which ferves to fupport the 

 mould- board in the middle, to prevent the prefiTure of the earth 

 from bearing it down upon the plough. 



The bottom of the ground-reft, from E to A, is trimmed with 



iron. 



