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# Title: Philosophical Principles Of Natural Religion (shelfmark Leibn. Marg. 53)
# Folio 276, page id 797370323:0434
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=797370323&page=434
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DBEnlocorlical
Deinciplee
E XLVII. Thare before oblerv d, chat
aIl the Canals excepe the Arteries tave
Valres, by irhich cheir Fluids arc per.
mitted to 00 Formard, in their Course,
bue hindered From returnine back, aII
thele Valves, openins torrard the term
of che Macural Motion, ot chele Fluids,
buc siutins by the Prelture of the Blo0d in
a Contrary Direction, and thereby ob.
Structine that backmard Motion. THesC
Valves are vilible, noc ouly in the Veins
buc in che Tymphaticks, the Lacteals and
Ductus Thoraciens; and ic is obserrable
that this last Channel alirays g0cs up thC
lete Side, chac by che Pullation oF thc
oreat Artery, uxon wrhich it immediatele
lyes, che Chyle may be proveild upmard.
de is likerile remarkable, etac aIL che
Branches OF che Arteries wrtrich g0 OH, ac
an) Sall Distance trom the lrunks, do
aII unice asain in one Trunk, irhole
Branches communicate rith onc another,
and rrith ochers, as beFore; and that FOr
chis rise End, chat when any small
Artery is obsmctect; or cur, the Blocd
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