( 19 ? )

It it should be Objectcd, that this may be D/awn out into Seeming Vtf-sels, which yet may not be really such ; I Answer, that these Vestels havethe fame appearance in the Body of the Testis^ as ro denote them such, be-töre they are Drawn out; and in’ the Exterfion it does sömetimes lb happen,that one of them will Extend calily near half a Yard long betöre it Brcak--,though so exceeding Delicate and Tender, as you may Imagine Andwhen it is thus Extended. it hath a kind of rescmblance to the Corruga-tions of the Epididymis, and keeps the fame Figure and Magnitude in thewhole Extent ofthem, as to the Sight; unlefs they begin to Dry, andthen you may sce them Idole their Girations upon Stretching : as you mayfee of both forts reprefented in the Figure , as they appeared on the dass a-bove-mentioned.

And that the greattst part of these Vestels are Arterie«, or other Vesie'sthat immediately reeeive Liqubrs from them, I may prove, I think, fromanother Experiment, made by Injection into a part of the Arteria Trana-ram, before I went to Expand the Body of the Testis ; whereupon openingthe Part, which I faw diseoloured, I found that many of these Tubes. hadreeeived forne of the fine Partides of that Matter, which I Tinged my In-jected Sprit with.

And to prevent another Objection, that might arise, Viz. That thesoParticles might possibly change their Colour only Outwardly ; I uscd otherendeavours to assure my seif, that the seid Particles were indeed Includedwithin the Cavities of these Tubes. In the doing of which, I did Moistenthose 2 Tubes with Sprit of Wine, to see whether that would Remove orAlter those Particles: But finding no such thing, I Prickt and Open’d witha fine Needle part of the Containing Tube; whereupon I sew iflue forthsevera! of those Liquid Particles afore-mentioned : Which assures me fartherthat this is a mere Scheme or Congeries of Vessels.

3. Quod Cl. D. Clarck ait, se Parenchyma (quod Succum quShdam de- *notare dicit Affusum vel Effusum & aliquo modo Concretum in Vascula- ‘lum & Fibrillarum Interstitiis,) in Testiculis Virorum, & aliorum etiam Ani-malium, Testimonio Sensuum ostendere posse; hoc Ego, pace tanti Viridixero, non nisi Autopfia, edoctus admittere possum. Quandoquidem ßepilll-nse Hominum aliorumve Animalium Testiculos, exceptis Tenuissmis quibus-dam Membranulis, ita disiolverim, ut ne Umbra quidem talis Parenchyma-tis remaneret; imo, quod magis est, querundam Animalium Testiculos itadissolvi, ut vises acie ne quidem Membranulae illae conspicerentur. Et utVerba mea factis comprobem, mitto ad te Gliris Testiculum meo modo dis-solutum, ut videas, an Glandula tales in Testibus (quales proponit Clar. Dn.Clark) vel etiam Parenchyma tale reperiatur. In hunc fere modum reli-quorum Animalium Teßiculos dissolvere possum, ea tamen Dtversirare, utin nonnullorum Testibus aliquae Membranulae tenuissimx, & in quorundam,Radix p xterea Epididymidis Highmori remaneat.

4. Wbat these two last industrious Physicians have imparred, looks verv Byfair to evince, that th zTtfles of Animalsare made up of nothing but Vestels pand their Lsquors. But notwithstanding this, Dr. Clark and divers other

C c lngeniou«

Dr. dc Gra*ff., p. 104.6.

Hj. 5 0.

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