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Of Vegetation. 











3 jo 



Seed roots, into the radicle c, z, d, which 

 radicle, when it has fhot fome length into 

 the ground, does then imbibe nourifhment 

 from thence 5 and after it has acquired fuf- 

 ficient ftrength, as this tender ductile root 

 is extending from z to c, it mult nccefla- 

 rily carry the expanding Seed-lobes upwards, 

 at the fame time ithat the dilating from z 

 to d makes it moot downwards 5 and when 

 the root is thus far grown, it fupplies the 

 Plume b with nourifhment, which thereby 

 f welling and extending opens the lobes a r, 

 a r, which are at the fame time raifed a- 

 bove ground with the Plume ; where they 

 by expanding and growing thinner turn to 

 green leaves, ( except the Seeds of the pulfe 

 kind ) which leaves are of fuch importance 

 to the yet tender Plume , that it perifhes, 

 or will not thrive if they are pulled off; 

 which makes it probable, that they do the 

 fame office to the Plume, that the leaves 

 adjoyning to Apples, Quinces and other 

 fruits do to them, viz. they draw fap within 

 the reach of their attra&ion 5 fee Exper. 8 

 and 30. But when the Plume is fo far ad- 

 vanced in growth, as to have branches and 

 expanded leaves to draw up nourifhment 5 



then 









