6 Vegetable Statich. 



each ; by numbring of which I had the fur- 

 face of the leaves in fquare inches, which 

 multiplied by the number of the leaves in 

 the correfponding parcels, gave me the area 

 of all the leaves j by which means I found 

 the furface of the whole plant, above ground, 

 to be equal to 5616 fquare inches, or 39 

 fquare feet. 



I dug up another Sun-flower, nearly of 

 the fame fize, which had eight main roots, 

 reaching fifteen inches deep and fideways 

 from the ftem : It had befides a very thick 

 bum of lateral roots, from the eight main 

 roots, which extended every way in a he- 

 miiphere, about nine inches from the ftem 

 and main roots. 



In order to get an eftimate of the length 

 of all the roots, I took one of the main roots, 

 with its laterals, and meafured and weighed 

 them ; and then weighed the other ieven 

 roots, with their laterals ; by which means 

 I found the fum of the length of all the 

 roots, to be no lefs than 1448 feet. 



And fuppofing the periphery of thefe 

 roots, at a medium, to be 0.13 1 of an inch, 

 then their furface will be 2276 fquare 

 inches, or 15. 8 fquare feer -> that is equal 



to 



