4t4 Defcrtpt'ton of a Plough for Cleaning Turmpi. OQi. 



two bars of wood, (fometimes of iron), fixed in like manner 

 to the left-hand beam, and pafTnig through the other, where 

 they 3re fixed by means of wedges. E is a bar of iron, alfo 

 pafTing through both beams, with holes in it for the purpofe 

 of fixing the bridle by which the plough is drawn. The 

 mould-boards arc fixed to the fheaths by hinges, and are placed 

 »t any required width, by means of two iron pins, y and g\ 

 which, going down through the beams, pafs through holes in 

 a thin bar of iron fixed to the infide of each mould-board. 

 F and G are the two feathered focks. Fig. 2. is a view of 

 the fame, as feen from above ; in which, the way of altering 

 the mould-board is more diflin£l:ly perceived. The plough, 

 when ufed in this way, is drawn by two horfes. Fig. 3. is a 

 view of it from above, when the two beams are brought clofe 

 together, and they form one double mould-board plough; the 

 coulters are then taken out, the two focks taken off, and the 

 fock H put upon the points of both the fheaths, which cleans 

 the bottom of the furrow betwixt the drills, and keeps the two 

 iheaths firmly together. It is now drawn by one horfe. 



Fig. 4. is a rude fketch of a fe£lion of the drilled turnips ; 

 A B their form before the turnips are cleaned. 



C C C C their form when the earth is taken from them 

 •with this plough. 



U D D D is the foil taken from each fide of the drill, and 

 formed by this plough into a ridge in the bottom of the for- 

 mer furrow. When placed together, for fetting up the tur- 

 nips, it goes in the middle of this fmall ridge, and lays back 

 the foil to the roots of the turnips. 



"When the common plough was ufed, it went firft along 

 the one fide of the drill, and then the other ; and, being too 

 "wide, it laid the foil too much upon the fide of the drill — It 

 will be feen at once, that this plough does double the work 

 of the common one, * 



I underftand they are fometimes made with other two 

 moveable mould- boards, which hang on by hooks, when the 

 two beams are feparated, as in jig. i. and 2.; and it then 

 >A'ill alfo fet up two drills at once : but, in this cafe, they re- 

 quire two horfes, and are made flronger. 



They are alfo often flrengthened by a bar of iron going 

 diagonally from the hinder end of one beam to the fore part 

 of the other, and which is fixed by a fcrew and two nuts, as 

 the rod AB, in fig. i. and 2. I am, &c. 



S. E. 



TO 



