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and over ; Cime of which proved so successful, to my Apprehension, that I w» sencouraged in the Year t66z and 1664, rodiscoutse of it to severa 1 veryWorthy Person* ; a* Mf. Boyte, Sir Will. Petty, Dr. Williams, Dr. Lenlhal,Dr. Jaffar JSIeedham, Dr. Samfim, (who afterwards sent me a Letter fromFrance, intimating the Acquaintance he had made with the Learned Steno,who hath srnee Publiffied fomethingof the fame Discovery) Mr. banielCoxa nd Dr. Sam. Parker, &c. who doubtless cannot but remember, that thenI relatedto them, I fcnlnd much causr tobelieve, thar that Substance com-monly call’d Parenehynta was in moft, if not in ali its Parenchymous Parts,füll of Vessels; however it had been Imagined by all, I could ever meetwi th, to consist in great parr ofa Substance, in many places void of Vessels,defign’d for such Ilses, as are above-mentioned. Against whidi, I havenow further to alledge; 1. That I obscrve in a piece öfMüsculous Fleffi(To call’d) either Raw, Roastcd, or Boiled, &c. that if I so'färextend it,as to make it tobeseenthvough, I can (asststing my E ye) perdeive it sulj ofVcslels placed as thick as is poslible to be imagined (the Fat if there beany, bemg 6<st rcmov’dj there appearing thennothing but Vessels, yet soas with a Mtcrofcope may be seen thorough, when they are extended.z. That if any one, as he is at Dinner, take a piece ofFleffi,and begin eitherat the Head or Tail of a Mus de, he may divide it r» infinitus», ali along fromHead to Tail without breaking any thingof that called FJell^only these trans-verte Fibres that soern to stitch them together, arid (äs I am apt to think)pass through the very B odies of the Imallest of them, and quite through thewhole Mufcle up the cutaneous Porosities ; so that there is not one or theseImall Dutis, that run per longitudinem, but’tis turnifh’d with a sufficient num-her of out-lets, when nced requires, thöugh toö minute to suffer any Alimen-tary Juice to passtransverfiy (in a livlng BodyJ or afty ofher Liquor whenthe Body is dead and cbld. But to wave their Use at prescnt, and to return towhat I was sayirtg, comprcss betWeen the Fingers this bit of Fleffi, and youffiall find the Juice, especiallyif the Meat behot, to go beforeyour Fingeretoward either end you please ; but if you Compress both cndsyou ffiall see it(well into the middle; and again, if you preis the middle it will run out atboth ends. But further, sopposc a piece of Fleffi, called Parenchyma, as bigor as little as you jflcase, in any patt of the Body, and let me prick it witl»a Needle, where you ffiall appoint; if you feel if, I presume you will ac-knowledge, a Nerve or a Fibrilla related to it is touched : If you feel it nor,1 am sure some Liquour, either Cniguineous or other, will follow the Needle:And fromwhcnce can that come but out of Vessels? unlels accidentally, asby a Conrulion, &c. it be extravafed; In which Case my Argument willnot be injufed, because the Part is depraved, whereas I speak of the Parts asihey are in their Natural Stare.

Toconfirmand illustrate ali which, I defire, that the following familiärObservations may be considercd :

1. IfaHorlc, sät and fair to look on, without a hollow to be seen be-twcen his Muselcs, be rid extream harel and into a great Swear, and then keptone Day without Water or moist Meat, you ffiall see him look so thun in

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