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Book IV. of Fruits. 
73 
the Cafe, as fometimes, but on the Pole, in the Centre, with their 
thicker end downward,they ftand ready for a difcharge : and the Sides 
of the Cafè being lined with a ftrong and Tenfed Membrane, they here- 
by perform the office of fo many little Bows: which, remaining faft 
at the Top, and (contrary to, what we fee in other Plants) opening or 
being Jett off at the Bottom, forceably curle upward, and fo drive all 
the Seeds before them. 
CHAP. VI 
Of the US E of the Parts to the Fruit. 
4, N the forgoing Deferiptions, I have already mention'd 
the Ufe of the Parts in fome particulars. I fhall now 
a little further explain the manner of their fervice, 
both to the-Fruit,/and to the Seed. 
2, $. And firlt, the Vefels ferve for the Figura- 
tion of the Fruit. So inan Apple, the Ten great and 
7 @ utmolt Branches ferve not only to nourifh and feed 
it; but alfo, by the Arched Lines they draw, to dire& and govern the 
Growth thereof into. an, orbicular Figure... The Dilatation of thefe 
Veffels, not being hindred by any Braces or Conjunition with the In- 
terior ones. By the Slendernefs of the Aer-Vefels, asin the Root, fo 
here in the Fruit, much promoted. And by their Saline Principle, 
firft begun. 
$ beg The Five midlemoft and the Five Inmoft ferve together, ta 
figure the Goars the former. bounding the Outer, the Latter, the Iner 
Angles. For were they only Five, or were all Ten in the fame Cir- 
ele, they would only make a round Cavity like that of a hollow pith. 
Hence it is that Apples, in which fome fmall Threds of the Vefels ftrike 
out into the Circumference, are very Uneven with divers Knobs and 
Ridges. But Plums, Cherries, &c. where the Vefels all terminate at 
an Equal diftance from the Skim, are Even all round about. 
4. $. The Bulk of the Fruit dependeth alfo on the Braces of the 
Veffels. For in Plums and Cherries, they are more numerous; but in 
Apples and Pears they arc very loofe one from another, and fo have li- 
berty left them to fpread abroad, 
5. $. Asalfoon their Size; that is, on the: Size of the erde 
Which, the lefs they are themfelves, they ferve to make a bigger Fruit. 
As the lef they are in any Root, they ferveto make it the more ample. 
For the lefs they are, the more pliable to the Artraé#ion of the Ar : 
and in their Growth muft make fo many more fpiral Rings: by both 
which means, they make the greater Arches. And therefore a Pear is 
commonly a finaller Fruit than an Apple; a Plum than a Pear; and a 
Grape, than a Plum in all which the Aer-Veffels are (till greater and 
greater. 
