52 
POMOWN?*A: Or, 
Surface of the Roots of every Plant naturally bears cto the Surface of 
their Leaves, fo are their imbibing and perfpiting Powers proportionable ; 
and according to thofe Proportions muft the Heads of Plants be reducd, 
when tran{y planted. 
I DUG up the Neétarine Tree carefully, and prefervd all its Roots, 
(the very Fibres excepted) : It had five main Roots, extending them- 
felves nearly horizontally, about three or four Feet: from the -Scem, 
with many lateral Roots of different Lengths : The Girts. of each 
of the main Roots, at the Body of the Tree, were three Inches, and 
the Length of each being three Feet ; therefore multiplying 36 Inches, 
which is equal to three Feet, by.1 2, the half Girt at the Stem, it being 
conical, the Product willbe the Surface of one main Root. 
Produ&. .. ~ - a. Dee foteare Inches, | ‘ 
Which: multiply a again, by. ge the Number of main Roots 5 
Podge se 170 Ke ee the oe E five 
main Roots. Each’ main Root “had (one with the other) 430 lateral 
Roots, whofe mean Girt, at the main Root, was half an Inch, (the 
large ones next the Stem or Body of the Tree being a full Inch, and 
thofe at the. extreme Part of the main Roots, 3 of an Inch, whofe half 
is half an Inch, the mean Girt. thro” out). The Length of the largeft 
and longeft 7 thefe lateral Roots was each about nine Inches ; and of 
the fmalleft and fhorteft, about three Inches ; therefore hick mean 
Length is fix Inches. Now 430, the Number of lateral Roots on one 
main Root, being multiplied by 6 Inches, their mean Length, the Pro- 
duct will be their whole nc — <sene | 
430 
Sains seo 
produ = the whole =e of all the la- 
tera Roo, Se a to one cue ae . 
eg: a ene @ 
a 
bes ee ess = R 
