29B Of the Fruit . 
fort of parenchyma, being clofer and finer, and divided 
by the lamels into feveral diftindt bodies, every one of 
them being an entire bag - 3 in every one of which the 
parenchyma is contained ; which is alfo a clufter of other 
lefier bags, all disjoined from one another, each having 
their diftindt ftalks of feveral lengths, by which they are 
all faftned to the utmoft fide of the great bag wherein 
they are contained. Within thefe lefier bags alfo the 
microfcope can fhew many hundreds of bladders, con- 
fifting of extremely fine threads, as it were wove together 
into that figure ; and within thefe bladders lies the acid 
juice of the lemon. 
A cucumber hath alfo a three-fold parenchyma, the 
outermoft is derived from the bark, which being expofed 
for fome time to dry, and then tranfverfly cut with a 
razor ; not only the bladders but alfo the threads whereof 
the bladders confift, are plainly vifible when viewed thro* 
the microfcope. 
Throughout this parenchyma are difperfed the fap 
vefiels, in ten or twelve very large branches, each of 
which embofoms another of air vefiels. 
The middle parenchyma is derived from the pith, and 
divided into three triangular columns, within which are 
a diftindt fort of fap vefiels, whence feveral frnall and 
fnort fibres {hoot into the inmoft parenchyma, whereupon 
the feeds do hang. 
The inmoft parenchyma wherein the feeds do lie (and 
which anfwers to the pulp of a lemon) feems to be pro¬ 
duced from the feed-fibres, by three infertions from the 
columns, and as many from the outmoft parenchyma, and 
thefe reinferted; it is divided into fix triangular bodies, 
and every triangle into three ovals. 
A pear, befides the fkin, confifts of a two-fold paren¬ 
chyma of vefiels, tartareous knots, or grains, and a core; 
the {kin when viewed in the microfcope, appears to be 
lined with a great number of thefe tartareous grains, which 
are 
