4 0/Roots W Leaves. Chap. I. 



more than another Yard, to give each Turnep as 

 much Increafe as all the Roots had done in their own 

 Land. 



Except that it will hereafter appear, that the new 

 Nourifhment taken at the Extremities of the Roots 

 in the Land £, might enable the Plants to fend out 

 more new Roots in theirown Land, andreceive fome- 

 thing more from thence. 



The Row C being twice as big as the Row Z), 

 muft be fuppos'd to extend twice as far ; and the 

 Row B, four times as far, in proportion as it was of 

 a Bulk quadruple to the Row D. 



A Turnsp has a Tap- Root, from whence all thefe 

 Horizontal Roots are deriv'd. 



And 'tis obiervable ; that betwixt thefe two Lands 

 there was a Trench, or Furrow, of about the Depth 

 of nine or ten Inches, where thefe Roots muft de- 

 icer, d firft, and then afcend into the Land E : But 

 it muft be noted, that fome fmail Quantity of Earth 

 was, by the Harrowing, falPn into this Furrow, 

 elfe the Roots could not have pafs'd thro' it. 



Roots will follow the open Mould (a) 9 by defend- 

 ing 



(a) A Chalk-Pit, contiguous to a Barn, the Area of which 

 being about 40 Perch of Ground, was made clean and (wept ; fo 

 that there was not the Appearance of any Part of a Vegetable. 

 more than in the Barn's Floor: Straw was thrown from thence 

 into the Pit, for Cattle to lie on ; the Dung made thereby was 

 haled away about three Years after the Pit had been cleanfed ; 

 when, at the Bottom of it, and upon the Top of the Chalk, the 

 Pit was covered all over with Roots, which came from a Witch- 

 Elm, not more than Five or Six Yards in Length, from Top to 

 Bottom, and which was about Five Yards above, and Eleven 

 Yards from the Area of the Pit ; fo that in three Years the Roots 

 of this Tree extended themfelves Eight times the Length of the 

 Tree, beyond the Extremities of the old Roots, at Eleven Yards 

 Diflance from the Body: The annual-.ncreafed Length of the 

 Roots was near Three times as much as the Height of the Tree. 



I'm told an Objeclion hath been made from hence againft the 

 Growth of aPlant's being in proportion to the Length of itsRoots; 

 but when the Cafe is fully ftated, the Objection may vanifh. This 



Witch- 



