436. OF DRILL -PLOUGHS. Part IV» 



Thefe pipes are bent to the {\\a.pe of the infide of the half bar- 

 rel. Jig. 8 to which they are fixed fo as not to interrupt the motion 

 of the fpoons, Jig. 7 ; and they extend to the bottom of the barrel, 

 in fuch manner that, reaching the grain, they give out the feed only 

 in proportion to what is taken up by the fpoons. The diredrion of 

 thefe pipes is not exactly rcprefented in ^fig. 7. becaufe they do not 

 there terminate in the barrel h. That part of the drawing is in- 

 tended only to give an idea of their pofition. 



The fpoons throw the feed over at ;/, Jig. 7, where it falls into 

 the divifiOns 000, Jig. 10, which are faftened to the fhafts aa, b b,. 

 Jig. 5, underneath the box /, and drops through the pipes ppp. 

 Jig. 10, which terminate behind the fliares q. Jig. 11. palling 

 through the opening r. The fhares. Jig. 1 1, terminate in a triangle 

 at their bottom s, forming an angle forward, and a hollow behind. 

 They are faftened by the fcrew /. 



Befides this, M. Diancourt has placed at 1;, Jig. 5, a fmall roller,, 

 which is likewife reprefented by V, Jig, 12. This roller, which is; 

 about fix inches diameter, is faftened to the ftaves x x. Jig. r, by 

 the two upright irons yy* Jig' I2» by which the roller is placed 

 higher or lower, according as the feed is intended to be fown more 

 or lefs deep : and laftly, he has fitted to the crofs ftaff 2, Ji<^. r, a. 

 kind of fcraper. Jig. 13, which clears the roller when it is clogged 

 with earth. 



Two pullies, one on each fide, are perhaps preferable to the fingle 

 "wheel which Mr. Worlidge has fixed on his hind axle-tree. The 

 quantity of feed to be fown, may be regulated by the fize of the 

 pullies, or wheels on the axle-tree : for the larger the pullies are, 

 the more frequently the cylinder on which the fpoons are fixed, will 

 be turned round, and the fpoons will confec»uently deliver the greater 

 quantity of feed. The fize of the fpoons may likewife be adapted 

 to the fize of the feed intended to be fown. 



SECT. III. 



Defcription of M. Vandusfel'j- Rake. 



TV/r Duhamel, and feveral other gentlemen who have pradtifed the 

 iy^» new huft^andry abroad, met with fo many difficulties and 

 inconveniences in the ufe of iVlr. Tull's drill-plough, that they were 

 obliged to contrive other mehods of aiilling their corn. One of the 

 fimpleft inventions to anfwer this end, was M. Vandusfel's rake, of 



which 



