The Fruit-Garven Iuftrated.. 
=). 
IN cool or wet Days, the Perfpiration of Pha is not fo oteat, as 
in dry and hor Days ; nay, very often they have no Beripiettion at all, 
but are in an imbibing State, efpecially in warm wet Weather. 
AND when cold wet Weather continues a long while, Trees become 
faturated with Moifture ; and then it is that their Sap is full of Crudities, 
for want of a drying Air to perfpire it away, which renders their Fruits 
immature, with infipid Taftes. 
THIS is manifefted when wet and cold Summers iil and 
therefore, even for this only Reafon, ‘tis abfolutely neceffary, that the 
Branches of Trees fhould be kept very thin, fo as to let in as much 
Air as is neceflary to perfpire away the Chidiie of the Sap. 
THIS is the real Caufe of the lower Branches of ‘Trees, which ftand 
thick together in a Wood, being dead, or very near it, whilft thofe on 
their very Tops are in a thriving healthy State. 
FOR séewihilandiad that the lower Branches are neareft to the Root, 
and confequently receive their Sap before thofe at the Top, yet for 
: Tank of fee the: Air, fan Be cannot Pt eee Me as thereof, 
Tops, which eet enjoy a fee Air, tho’ f farchelE fiom the ‘Root, 
perfpire freely, and expand much. And on the contrary, Trees that 
ftand fingle, have their largeft and ftrongeft Branches next the Roots, 
and the very weakeft at their Tops ; > for fuch Trees having a free Per- 
fpiration in all their Parts, their lower Branches are firft furnifh’d with 
“Sap, which sagt them ftronger than thofe that are higher, and laft 
ferved. And ’tis from this that Foreft Trees acquire their beautiful 
Pyramidical Forms, the Force of the Sap being proportionably fpent, in 
the feveral Stages of their lateral Branches, as they afcend in Heighth. 
AND as every Stage of Branches are fhaded by the next above them, 
’tis therefore that they become naked, and only produce Leaves at their Ends, 
as in the Cafe of Trees planted eat together in a Wood. But if the 
middle of Trees are kept open, as Dwarf Trees in Gardens, or very 
thin of Wood, then all their feyeral Branches will have a free Perfpi- 
H ration 
