890
by a long use of the Microscope, end his deductions from them. He affirmes, that he hath always observed, the Kidneys to be also a Concrete of small Glandules, by injecting through the Emulgent Artery a black liquor, mixt with spirit of wine, and by cutting the Kidney's longways, and then finding, betwixt the Urinous Vessels and their interstices, very many of such glanduls which like litle apples are appendant to the Sanguineous, vessels, turgid with that black liquor. He adds, that, after many trials he at last found also connexion betwixt those Glandules and the Vessels of Urine. As to the Pelvis, he makes that nothing but an Expansion of the Ureter, as consisting of the same membrane and nervous fibres with the Ureter. Discoursing of the Use of the Kidney's he finds it difficult to explain, by what art and mechaniisme, Nature so copiously excretes by the Reins (whose glandular structure seems to be uniforme) a liquor which is compounded of Aqueous, Saline, Sulphury and other particles, and sometimes the relicks of imposthums, and other filth of the Body: Where he takes great pains, in some measure to clear that matter; adding thereunto the manner of the Stones generation in the Kidneys.
In the Exercitation about the Spleen, having premised, as before in the other parts, what has been hitherto publish't about it, he subjoyns what himself hath further observed therein: viz. That the whole body of the Spleen, however it may seem to be a substance made up of concreted blood, yet is indeed a complex of Membranes, fashion'd and distinguish't into little Folds and Cells, clearly to be seen by syringing into it store of Air by the Ramus splenicus, whereby the whole Spleen will become so turgid, as to swell into an excessive bigness; which if upon the exsiccation of the thus swelled part, it be presently cut, its whole masse will be found made up of Membranes, of the shape of the Cells in Bee-hives; as he affirms to have clearly seen in the Spleen of a Sheep and Hogg, and in that of a man. But then he adds, that through this whole membranous Body of the Spleen are copiously dispersed Clusters of Glanduls, or, if you will, Bladders, very plainly resembling Clusters of Grapes, appendant on the fibres, and the extremities of the arteries and nerves of that body. Coming to discourse of the Use of the Spleen, after he hath examined the various opinion of Anatomists concerning it, and declar'd his dissatisfaction therein, together with the reasons thereof, he does with great modesty as well as ingenuity offer his thoughts about it, viz. That, considering the whole structure of the Spleen, it seems to be designed for a new separation and mixture of the Iuices conveyed into it's Glanduls by the Arteries and Nerves, and then collected in the Cells; whereby and by it's stay there, the Blood receives such a further change, and is so much more exalted, that being convey'd by the Splenetick Branch into the neighbouring Liver and there refermented, it acquires a disposition, for an easy separation of the Gall there (which is supposed to be the chief work of the Liver.)
