Chap. XXL Of the Wheat-Brill 3 50 



A, which is below the Bottom of the Cavity which 

 holds the Seed, and is commonly plac'd a little crofs 

 the Grain of the Board to which it is nail'd, and 

 ferves to ftrengthen it, and keeps the Hole i from 

 fplitting. . The upper Edge e f of this added Piece 

 of Board is exactly the Length of the Bottom of 

 the Hopper, wherero the Brafs Seed-box is fattened ; 

 and this Bottom, together with its Seed-box under it, 

 being put into its Place, bears upon this Piece from e 

 to /, which holds up the right Side of the Bottom, 

 and keeps it from finking downwards ; as the lower- 

 Ends of the Two mention'd Pofls, and the fore and 

 hinder Side B and C nail'd to them, prevent its rifing 

 upwards. 



The Manner of making the Hole i is as follows: 

 Place the Seed-box with its fore End at e, and hinder 

 End at/, with the Bafe of its Cylinder (or great Hole) 

 againft this added Piece of Board, and its upper Edge 

 exactly the Height of the Edge*?/; then, with a Pair 

 of Companies put thro' the Cylinder of the Seed-box, 

 mark round the inner Edge of its Bafe upon the 

 added Board ; then take off the Seed-box, and find 

 the Centre of the mark'd Circle ; and then with a 

 Tool call'd a Centre-bit, of the right Size, bore the 

 Hole quite thro' the double Board ; and this Hole will 

 be in the right Place, and of the fame Diameter with 

 the Spindle -, but in cafe there is to be a Brafs Wreath 

 on that Part of the Spindle which is to turn in this 

 Hole, then the Hole mutt be bor'd of the fame Dia- 

 meter with that Part of the Wreath which is to enter 

 it; and that may be perhaps near a quarter of an Inch 

 longer than the Diameter of the Spindle, upon which 

 it is fattened. 



This End A, thus bor'd and fhap'd, is a Pattern for 

 its Oppofite, and for the other Two Oppofites of the 

 other Cavity, which holds the Seed at the other End 

 of the Hopper. 



A a 4 When 



