4^6 OF PLOUGHS. Part IV. 



inftead of thofe iron pins, he has riveted them with wooden pins, and 

 found them keep the whole tighter together than the iron ones. 



To the left fide of the plough fliould be fail:ened the thin board N, 

 Jig. I &7, the ufe of which, is to prevent the earth from tumbling 

 over between the Ihare and the mould-board. Plowing wears the 

 point of the fliarej but much lefs than it does that of our common 

 ploughs. However, it mull: be new pointed from time to time ; al- 

 ways obferving to make the point incline a little towards the earth, 

 as is reprefented by the pricked line DL,Jig. i ; that the Ihare may 

 fcarcely touch the ground at any other part than D and L, in order 

 to lefTen the fridlion. 



The hind part of the plough, thus formed, is joined to the fore 

 carriage, by running the crofs flaves EF, GH, Jig. 2. through the 

 mortifes of the beam, g and /j ; and fixed there, either by the fcrews 

 m n, or the pins p, q. The traces of the firft and fecond horfe are 

 faftened to the hooks AC; and if a third horfe is ufed, the traces of 

 that third horfe are faflened to thofe of the fecond. Horfes will do 

 better for this plough, than oxen, unlefs thefe lafl have been ufed to 

 be harneffed one before the other. 



The plough thus equipped, may eafily be carried to the field, if 

 its hind part is laid upon the little carriage^ W',Jig. 2. confining of 

 an iron axle trtt MPF, two fmall wheels ki, Ir, and the two pieces 

 Bt, Dv, at the end of which are the hooks B and D. Thefe wheels 

 are about 2 1 inches or two feet in diameter, and three feet fix inches, 

 or even four feet afunder. They are very light, having but a fmall 

 weight to bear. The hooks of thefe two pieces Bt, Dv, are hooked 

 to the rings B and D at the end of the fh^fts; and by this means the 

 plough will be carried upon three wheels, of which Jig. i . and 2 

 iliew fufficiently the arragement and ufe. Fig. 5, fhews the flope 

 that fliould be given the upper furface of the middle of the axle 

 tree of this fmall carriage on which the reft of the plough is to be 

 loaded in order to remove it from one place to another, that the 

 ground-reft and other pieces may lie flat and fteady upon it. 



M. de Chateau-vieux's direSlionsfor ufing this plough. 



'Tp O open the firft furrow, the wheel muft be placed at the laft 



-'• hole, towards the extremity of the fliafts. This makes the 



fhare incline the more, and confequently cut the deeper. But as it 



would be fomewhat troublefome to change the pofition of the wheel 



I at 



