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Reflections upon
Ducts, or Veins, to the Place of their Origination. What this Origination is, was long uncertain, it not being easie to trace the several Canals up to their several Sources. (t) Observat. Anatom.Steno (t) and Malpighius (u) did, with infinite Labour, find, that Abundance of Lympheducts passed through those numerous Conglobate Glands that are dispersed in the Abdomen and Thorax; which made them think that the (u) Epist. de Glandul. Conglobat.Arterious Blood was there purged of its Lympha, that was from thence carried off into its proper Place, by a Vessel of its own. But Mr. Nuck has since (w) Adenograph.(w) found, that the Lympheducts arise immediately from Arteries themselves; and that many of them are percolated through those Conglobate Glands, in their Way to the Receptacle of the Chyle, or those Veins which receive them. By these, and innumerable other Observations, the Uses of the Glands of the Body have been found out; all agreeing in this one Thing, namely, that they separate the several Juices that are discernable in the Body, from the Mass of the Blood wherein they lay before. From their Texture they have of late been divided into Conglomerate, and Conglobate. The Conglomerate Glands consist of many smaller Glands, which lie near one another,
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