37^ Of the Wheat-Drill Chap. XXI. 



be exactly parallel with the Track of the Harrow- 

 tines, which might make it difficult to diftinguifh the 

 Track of the Wheel from that of the Harrow-tine. 



He that has not a great Quantity of. Ground to 

 plant with St. Foin, and does not plant it betwixt 

 Rows of Corn, will have occafion for no other Drill 

 than this Wheat-drill, defcrib'd in Fig. 21. He may 

 plant his Rows at Fifteen Inches afunder, by the hinder 

 Hopper, and its Shares, without removing them, the 

 fore Hopper being taken off; or elfe you may plant 

 Three Rows at Sixteen Inches afnnder, by fetting the 

 Beams, and their Seed-boxes and Hoppers, at Thirty- 

 two Inches afunder inftead of Fifteen, equidiftant 

 from the fore Share : and then the Marking- wheels, 

 which are thole of the fore Spindle, muft be Eight 

 Feet afunder; to wit, double to the Spaces of the 

 Three Shares, which are Three times Sixteen Inches 

 (or Four Feet) •, or you may fet the Two hinder 

 Beams, &c. at what Diftance you pleafe, fetting the 

 Marking-wheels to correfpond with them; but then 

 the Harrow muff, be alter'd, and both its Legs and 

 Tines mud: change their Places in the Head, the Legs 

 for guiding it exactly, and the Tines to follow in all 

 the Three Rows, which will require a third Tine to 

 be added in the Middle, between the other Two. 

 But without any other Alteration than that of taking 

 off the fore Hopper, and that of leffening the Seed- 

 paffages of the hinder Hopper by the Setting-fcrews ; 

 my Man planted me feveral Acres of St. Foin with 

 my Wheat-driil Two Years ago, the Rows being all 

 Fourteen Inches afunder : It is now an extraordinary 

 good Crop. , 



In cafe the Shares, being only Three, fhould in 

 fine Ground go fo deep as to endanger the Burying 

 of the Seed, the beft Remedy to prevent this fatal 

 Misfortune is, to place a triangular Piece of Wood, 

 like thofe in Figures 25. and 26. the firft of which 

 (hews one Side thereof, with the Nail by which it is 



to 



