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I he Ute of diese Glands Is twofold; First, on the EreBion of tlie Penittherc is so tmtch of their Liquor dilcharg'd into the Unthra, as fuffices todrive out any remains of Urine , and prevent its mixing with the Semen,and atother times,, the continual diseharge offome part of their Liquor in-to the Urethra, detends that Passage from the Saks in the Urine: the likecontinual Exudation cannot happen either from the Excretory DuBs of theTrost ata, or those ot the Veßcula Seminales , bccause the neurness of theSpbinBer Muscle so corrugates the inner Membrane of the Urethra , as pre*vents an easie Passage of the Liquor by the Ostiola., of the former : nor canthe Semen run out of the latter, since the Caruncula , or Caput Gallinaginn,iscontriv’d on purpose to prevent it : wherefore the Diapbragme, AbdominalMuscles, and Levatores Ani, are employ’d in Compressmg those Parts to Lis-ch arge their Contents.

It is not improbahle that the Matter, which flows at the latter end of theCure of Venereal Discafes,and is call’d a G/ecf ,proceeds from thefe Glands, and notfrom the Trost ata or Veßcula Seminales, as is commonly fuppos’d ; which mayafford us no mean Argument for the Use of Injethons in such Cafes ■ insteadof which some Practitioners persecute their Patients with violent Purges, andGram them with vast Quantities of Astringent Medicines. We may easilyconceive soch Gleets become sometimes very Obstinate, if not Incurable, byfuppofmg the Ulcer in that Contactto happen upon the Ostiola of these Se-cretory Dutts.

Fig. 52. A, A Portion of the Rladder of Urine. B B, Parts of the Ure~Exthcjtion of ters ' CC ’ ssuts of the Vasa Deferent ut . D D, The Vesicula Seminales forne-VfFig ucs what Distcnded with Wind, by blowing into the Vasa Deferentia, a a, TheF! <;2 Blood Vessels of the Veßcula Seminales. E, The Glandula Trostata. F,' ' The Urethra Expanded, aster opening its superior and fore-part, to see theOsttola of the Excretory Dutts of the following Glands. GG, The % Glandsabove describ’d, which from the Liquor they separate may be calfd Glandu-la Mucosa, h, The Excretory Dutt of the last mention’d Glands, before itpasses under ehe Bulbos the Cavernous Body of the Urethra. I, The Bulbot the Cavernous Body of the Urethra, partly Distended with Wind, andDivested of the Accelerator Musste, to sliew its External Membrane whichi? very Thin» whcreby the last nam’d Muscle does more adequately Com-press that Bulb, and drive its contain’d Blood towards the Glans when theTenis is crccted K, The zd Pair of the Muscles of the Tenis. L L , TheAccelerator Muscle divided in its Middle Seam on the Bulb, and asterwardsfreed from it, and Expanded. 11 , The upper part of this Muscle, whichpasses immediately over the Mucous Glands. MM, The Musculi DireBoretTenis. NN, The Cavernous Bodies of the Tenis. O, The Cavernous Bo-dy of the Urethra . P, The Ligature made to prevent the Wind from pas-fing out of the Cavernous Body os the Urethra and its Bulb. The Aper-

ture by which the Inflation was made.

Fig. 53. One of th e Mucous Glands aster beihg Macerat ed in Water, andExcretory DuB flll’d with. Quick-filver. A, The Mucous Gland some-

what