<2-^ THREE-FURROW rLOUCH. 



load your valuable Journal, though I fliall feel myfelfmucH 

 obliged by any further information upon this head. 

 I remain. Sir, 



Your mod humble fervant, 



A CONSTANT READER. 



VI. 



Drawing and Defcription of a Three-Furroto Plough. JBy the 

 Rev, EdmunpCartwright, of Woburn, Bedfordjhire,* 



To CHARLES TAYLOR, Efq. 

 Dear Sir, 



Economical A ENCLOSE you a certificate of the performance of a plough 

 ^^"^^tlf"""* of my invention, which has occafionally been at work through 

 the whole fumraer. For this laft fortnight, it has been ufed 

 for ploughing in wheat under furrow. Though a very ufeful 

 inftrument at all times, it is particularly valuable at the feed 

 times, and the turnip feafon ; becaufe at thofe times it fre- 

 quently happens you lofe the moft favourable opportunities, 

 for want of ability to execute your operations with fufficient 

 difpatch. 

 Weekly faving I need not calculate to you the faving on the ufe of this plough. 

 4I. i6s, jj jg worked (on light land I mean) with a pair of horfes, 



without a driver. A pair of horfes and a ploughman cannot 

 be laid at lefs than 8ti, per day. As two fets of thefe are faved, 

 the weekly faving by the ufe of this plough amounts to no lefs 

 than 4/. 16*. 

 Applicible to Ufeful, however, as I find this inftrument on our light level 



level 'ands in ^ u^^g J aui ,iot fo partial to it, to fuppofe it is equally calcu- 

 tolerable ftate of ' „ ,- , ,. 1 • , - , -^ ■ n 



(Cultivation. lated for all foils, or all kinds ot ground. For inftance, where 



the ground is very uneven, or the ridges are narrow and fteep, 

 I would not ufe it ; neither when the land is very foul with 

 root weeds. In all thefe cafes a fingle plough is certainly to be 

 preferred : but in all cafes where the ground is in a tolerable 

 llate of cultivation, and where it lies reafonably level, it wiU 

 . be found a moft valuable acquifition. 



* From the Tranfaftions of the Society of Arts, who voted him 

 the Clver medal. A model is placed in their repofitory. 



I will 



