APPENDIX. 409 



fcnan Paper, will be more fit for the Ufe). Draw a 

 •Line with Ink on the pricked Line, -p q. 



The Hole in C muft be fomething larger than in 

 the Cut, becaufe the Setting-fcrew muft be fo, being 

 bed to be of Brafs, which is Ms apt to ruft than Iron, 

 of which Metal it was formerly made; but Brafs, 

 being weaker, requires the more of it to equal the 

 Strength of Iron. 



The Wreath, Fig. 14. is not neceffary, becaufe the 

 Slider, Fig. 15. is fufrlcient without it; but then care 

 muft be taken, that the Edges of its Claws A B, 

 which rub againft the Cylinder of E, in Fig. 9. be 

 taken off, to prevent their cutting it. This Slider is 

 fometimes made of Brafs, and fometimes of Iron. 



Thus the Workman will have the Sides and Ends 

 of the Turnep-mortife, which make the Whole of it, 

 whereby he may make it exactly in foft Wood. 



Fig. 7. called the inner Cylinder, being put into 

 the Cylinder A, of the Steel Tongue, Fig. 4. where- 

 by the Holes for the Axis of the Tongue, being the 

 lower from the Top of the Mortife, do not only 

 fecure the Edges of the Mortife from breaking out, 

 but alfo give room for the Flanches B, C, in Fig. 9. 

 to be madft to reach as far forwards as the Axis of the 

 Tongue, and farther : Hereby the Hole, in the Bot- 

 tom of the Hopper, may be as wide at the fore End, 

 as at the pricked Line at the Letter B. 



The Notches in the Spindle, Fig. 5. feem to appear 

 deeper than is ufual for Turnep-feed; but I remember 

 I have drilled Furze-feed with a Turnep-drill without 

 altering the Notches. As for the Shape of theie 

 Notches, they are fo fully defcribed in Fig. 6. and 

 Fig. 8. of Plate 3. that I can add nothing to that De- 

 fcription ; only that thofe being for the Wheat-drill, 

 the Size ot Notches for the Turnep-drill muft be ieffer 

 in fome proportion to the Ieffer Size of the Seed, 



For making the Wheat-drill do the fame as for 

 fhe Turnep-drill. The Fig. 3. in Plate 2. is one Side 



of 



