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B06150 Tarrugo unmasked, or an Answer to a late pamphlet intituled, Apollo mathematicus by George Hepburn, M.D., and member of the Colledge of Phisicians at Edinburgh ... To which is added by Doctor Pitcairne, The theory of the internal diseases of the eye demonstrated mathematically. Hepburn, George.; Pitcairn, Archibald, 1652-1713. Theoria morborum oculi succincte demonstrate. 1695 (1695) Wing T169; ESTC R219128 34,296 74

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they are entirely flaccid there wants the weight of the Air and elasticity to squeese the blood by turnes into the left Ventricle of the Heart and so it cannot pass sufficiently in One whose old Canals are stopt to entertain Life Now it when One is puting forth the Air out of his Lungs it shall happen as it happened to the Person kill'd by the Thunder that the Air is ratified and so made much and suddenly lighter It will come to pass That first a small part of that mass of Air which he put forth will returne to the Lungs because a small part now takes up the room of the whole And therefore there will be wanting that weight which the whole mass before exerted for continuing the Circulation thro the Lungs And Secondly The Man must dye if the Air continue in this state of rare fraction made by the Lightning longer than he can live without Air as the event sheu'd it had done in this Man's case And here we have a new proof of the hurt that Metaphysicks doe in Reasoning For our Champion by vertue of them has found out That in Liquors the parts by rare fraction grow less than before Whereas say's he they might indeed grow larger if they were like the parts of brass or malleable matter Now every body knows that the portions of Air are Elastick and that when they are liberated rated from compression they like wool for to this they are by Mr. Royl and others likned exolve and expand themselves without having their parts made Lesser but only by having some of them remov'd farther from some others than before and so acquire a greater superfice or volume But out Champion must be excused for his mistake for the Metaphisicks make no mention of Elastick Fluids Before I leave him I must take notice how he wrests and mangles the Doctors words The Doctor had said That in the case of him that was kill'd with Thunder The air being suddenly and much expanded the air which environ'd the Man could not blow up the Lungs its weight being diminished neither could it enter its superfice being enlarged And this fellow makes the Doctor say That the particles of the Air become larger and lighter Now his Metaphysicks would not have furnished him with any quible against the Airs growing lighter and more expanded but he had a quible about parts growing lesser which I leave him to pursue Only since the Air may be expanded and any portion of it fill a larger space I would know if then its parts do not proportionally grow larger For Totum faciunt partes I come now to his page 117. In this and some following pages he makes all the use he can of his Art Metaphisical which seems to be the same with Lullius's that is the Art of raving and pratling of things he knows nothing of at all The Doctor in a discourse had made it manifest That no ferment in the Stomach dissolves our meats This was his main design and his reason was that the same Ferment would dissolve our Stomachs and Guts In place of this Ferment he substituted the attrition that the meat suffers in the stomach by the which its parts are separated after that by the heat of the Invironing parts and moisture it is made tender and easie to be divided into small particles He rejected therefore Doctor Listers Opinion not as false but in so far as he attributed too much to Putrification and because it is plain that the efficient cause which is mainly requir'd is the stomach help'd by other parts by its motion But because the Doctor knew it would be objected that the same attrition might wear off parts of the stomach he thought fit to furnish his Reader with an Answer to it taken out of many that could be made and it is this that the same parts and sides of a bit of meat are exposed to the action of the stomach whereas this action is not performed by the same parts of the stomach but by diverse parts of it applyed one after another This Answer the Pamphleteer takes no notice off for he had nothing to say against it Now it is plain that the serment is applyed always to the same part of the stomach especially it being deriv'd from the blood in Glanduls which contain it and furnish the stomach with it For I make use of the word Glandule to please and comply with the Adversaries We are then to consider what the Pamphleter says pag 124. There he is very angry at the Doctor for saying That the Circulation of the Blood is the ground and foundation of all Medicine For besides that One might infer from it That a good friend of the Pamphleters knew nothing of Medicine because when he was examin'd he told very gravely as one who believes what he says That the blood went out by the Veins from the Heart and return'd to it by Arteries from all parts of the Body I say besids this it spoils his pretences of being a learn'd Physician by reading scraps of Hippocrate and Galen who were ignorant of it as the Doctor has prov'd beyond any possibility of being refuted But there is great reason of suspecting that the Pamphleteer himself does not understand the Circulation and then he had but reason to be angry with the Doctor for extolling it so farr In the same page the Pamphleteer endeavours to shew that the Circulation is not the ground of Medicine since after its invention Physicians practise after the old method by Derivations Revulsions and Bloodings at different parts of the Body Where he means else he speaks arrant nonsense that Derivations c. are inconsistant with the Circulation Which proves him ignorant of the Circulation altogether for these agree exactly Let him to this purpose read the sixth prop of Bellini de Missione Sanguinis But since he understands not Mathematicks he 'll not understand the demonstration of that proposition In the pag 125. He shows himself a notable Disputant For the Doctor had taught That if any obstruction should happen in the Conduits it would ceteris paribus more readily happen in the Arteries than in the Veins c because the blood which carries the causes of obstructions runs from the wider towards the narrower part of the Artery so that the sides of the Arteries doe oppose the motion of the blood the contrary whereof happens in the Veins And the thing that could make an Obstruction in a Vein must make it first an Artery for it must first by the law of the Circulation come to the smallest part of the Artery and pass it before it can come to stop in the Vein Now the Artery being as small or smallet as the Vein if it could obstruct the last it must obstruct the first The Pamphleteer finds here a brave way to escape and raise as he thought a great disput The sides says he of the Arteries are yeelding and so cannot support the ends or Arches as it were
of the obstructing Body But are not the sides of the Arteries as stiff as the sides of the Veins c. But it is to be remarked that obstructions happen in the places where the motion of the Blood is slowest and where there is very litle dilatation of the Arteries so that all our Pamphleteer's quibles serve to no purpose unless to prove That the is no obstruction at all For the Doctor in the 22 paragraph of that Discourse shews That the Obstructing of Viscous sticking matter is to be found rather in the Arteriae Evanescentes than in the Veins Now the Arteriae Evanescentes retain nothing of an Artery save the figure This was told by the Doctor in that paragraph in mathematical termes that the thing might be less subject to ambiguity and the more comprehensively exprest AEqualis est velocitas in evanescente Arteria nascente Vena said the Doctor and therefore no more motion in the One than in the Other This is manifest by the Vein's being a continued conduit with the Artery as the Doctor prov'd and Microscopes let us see And thus our Quibler's pitiful shifts are discovered which depend upon gross ignorance of Anatomy and Mathematicks and every thing that is accurately exprest that is put in a Mathematical form of words Let us now come up to his page 129. The Doctor had taught that Willis and Sylvius and a great many others were in the wrong to place the cause of Apoplexies c In the Nerves since by what is said in that discourse de Circulatione in Genitis non Genitis the said cause must principally be found in the Arteries And because the Doctor knew it was the common doctrine of the place he then was in That Apoplexies were produc'd sometimes by a Coagulation of the Blood in which case they reckon'd that Rupturs and Extravasations follow'd and sometimes this was the opinion of Syllvius a man famous there by a kind of Coagulation of the spirits by the force or infection of Opium or other bodies having the like quality Now in this case they reckoned no extravasations of Blood since the fault is in the Spirits and not in the Blood The Doctor made no doubt of the truth of what is alledged in the first place since observations teach that Apoplexies often fall out by the Coagulation of the Blood in the Arteries and consequently its extravasation And therefore he speaks nothing of it but in general that whatever it be it must make the first obstruction in the Arteries And then he falls to examine the second opinion anent Apoplexie's being produc'd by the immobility and Coagulation of the Animal Spirits which Willis tollowed too To doe this aright he explains the way of Opiums working which is not by killing or coagulating the Spirits But by rarifying the blood which compresses the Nerves in the head where there is least resistance Now this is so manifest that there is no rarifier of the blood of any force that is no efficacious sudorifick that does not bring sleep on the Person that is put a sweating Here our Pamphleteer objects that then Spirit of Hart-horn c And such like rarifiers of the Blood would bring men into Apoplexies which nevertheless cure that disease This fellow has never seen an Apoplexy that talks of curing it by the rarifying force of Spirit of Hart-horn and the like The Volatile Salts and Spirits given in good quantities to Apoplectick persons work neither by their rarifying quality nor by their coagulating one but by their stimulating and irritating force as the Doctor taught us when he treated about Apoplexy or the force and power they have of raising pain For it 's plain that the foame of Vinegar from a red hot-iron has as much vertue to recover one from an Apoplectick fit as the spirit of Hart-horn tho Vineger be no great rarifier of the blood As for giving the spirit of Hart-horn or volatile Salts inwardly a thing not to be done in the fit of an Apoplexy If they be given in a good and sufficient quantity they 'l bring ease of pain and sleep just as doth Opium which I desire our Pamphleteer to learn But it is not possible to see such effects of the Volatile Spirit or Salts if they be given by one gutt or grain for a Dose as he and his learn'd friend do order them Now I leave it to a discreet Reader to judge what an excellent argument this of the Pamphleteer is against the Doctor If says the Pamphleteer page 130 Wyne or any thing that rarifies the Blood bring a fit of an Apoplexy then another Dose of the same will cure you of the fit I leave this cure to his Friend and Comatade But I proceed The Doctor teaches That every thing which rarifies the blood so much that the Arteries in the Brain containing it are dilated to a degree sufficient for compressing the Nerves there and so hindering the Efflux of Spirits will bring Sleep and perhaps a fit of sleepy Disease Now this is evident O but says our Pamphleteer Then all Sudorisicks c. will make us sleep And I tell him they 'll certainly do so when either their quantity or force is such as to produce a dilatation of the Arteries sufficient to compress the Nerves in the Brain What he says farther in this affair is arrant nonsense as is what he talks about the Heart's having an Antagonist Muscle than which nothing could have been said so contrary to Anatomy and so proper to make our Pamphleteer's gross Ignorance appear to the meanest Apprentice The Doctor had taught That the reason of the Heart's motion not ceasing was that the Heart had not an opposite Muscle For at all times all the Muscles have an equal quantity of Spirits flowing to them and keeping them in Aequilibrio else one Muscle would move the Member while the other being destitute of Spirits to blow it and contract it remain'd idle and useless Now if Muscles for bowing the Arm ex gr prevail it is because they have over and above the quantity of Spirits and Blood which they got to keep them in ballance with those Muscles which serve to hindet it from bowing a new quantity sent to cast the ballance and to make the contraction stronger on their side Now the Heart having no Muscle to act against it or to how a Member to the contrary side needs fewer Spirits and Nerves less free from compression and so can be in motion when other Muscles are not which require a quantity of Spirits to overcome the quantity of their opposite Muscles over and above what is requisite to keep them in Aequilibrio Whereas the Heart requires no more than what would keep in Aequilibrio with its opposite if it had any and much less To this our Pamphleteer Answers That tho the Heart has not an opposite or Antagonist Muscle yet it has first the Motus Restitutionis to surmount and so have all Muscles Sir and this is our Pamphleteers depth of Anatomy as much as the Heart Next says he it has the Blood to squirt out and no small force is requisit to that And Sir other Muscles have a heavy bone to lift up a Leg or Arm and no small force is requisite to this Yea over and above they have the force of a contrary and equal Muscle to overcome which the Heart is not incumbered with And this is the shallowness of our Pamphleteer who has all along spoke nonsense because he did not understand what it is to have or want an opposite or Antagonist Muscle Yet he would needs quible about it that he might seem to understand it He has had the like impudence over all the Pamphlet in medling with Mathematicks of which he is most grosly Ignorant so monstruously Ignorant that he page 85 brings in Bodies some Triangular some Square c. All which are Impossibilities but Demonstrations of the Fellows intollerable Ignorance in an affair in which he pretended to give Judgement I refer him therefore to his Studies and to the Mathematick-Professor who can teach him if teachable as much Geometry as will serve to let him see that the Muscles which dilate the Breast are stronger than these which constrict it And that the Muscles which he has muster'd up as constrictors of it perform a very different office whatever Galen has said to the contrary FINIS