Chap.I. Of Roots W Leaves. ii 



any Water in their Earth, but what thofe Roots, which 

 reach'd the Water in the GlafTes, fent up to the Roots, 

 which grew in the Trough. The vaft Quantity of 

 Water thefe Roots fent up, being fufficient to keep 

 all the Earth in the Troughs moift, tho' of a thou- 

 fand times greater Quantity than the Roots which 

 water'd it, makes it probable, that the Water pafs'd 

 out of the Roots into the Earth, without mixing at 

 all with the Sap, or being alter'd to any Degree. The 

 Earch kept always moid, and in the hot Weather 

 there would not remain a Drop of Water in the 

 GlafTes, when they had not been frefhfupply'dintwo 

 Days and one Night ; and yet thefe Roots in the 

 GlafTes- were notdry'd, tho' they flood fometimes a 

 whole Day and Night thus in the empty GlafTes. 

 Thefe two Mints have thus liv'd all one Summer. 



Remarks on the Mints, &c. 



Tho' theVeffels of Marine Plants befome ways for- 

 tify'd againft theAcrimony of Salt, as Sea-fifh are, yet 

 the Mints all mew, that Salt is poifon to other Plants. 



The Reafon why the Salts in Dung, Brine, or 

 Urine, do not kill Plants in the Field or Garden, is, 

 that their Force is fpent in acting upon, and dividing 

 the Parts of Earth; neither do thefe Salts, or at lean: 

 any confiderable Quantity of them, reach the Roots. 



I try'd Salt to many Potatoes in the Ground being 

 undermin'd, and a few of their Roots put into a Difh 

 of Salt-water, they all died fooneror later, according 

 to their Bignefs, and to the Proportions the Quantity 

 of Salt apply'd did bear to them. 



By the Mints it appears, that Roots make no Di- 

 functions in the Liquor they imbibe, whether it be 

 for their Nourifhment or Deftruction ; and that they 

 do not infume what is difagreeable, or Poifon to them, 

 for lack of other Suftenance ♦, fince they were very 

 vigorous, and well fed in the GlafTes, at the time 

 when the moll inconfiderable Part of their Num- 

 ber 



