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ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A25375	Chymical disceptations, or, Discourses upon acid and alkali wherein are examined the object of Mr. Boyle against these principles : together with a reply to a letter of Mr. S. Doctor of Physick & fellow of the colleg of *** : wherein many errors are corrected, touching the nature of these two salts / by Fran. Andre, Dr. in Physick ..., faithfully rendered out of French into English by J.W. ; to which is added, by the translator, a discourse of phlebotomy shewing the absolute evils, together with the accidental benefits thereof, in some cases.; Entretiéns sur l'acide et sur l'alkali. English	Saint André, François de, fl. 1677-1725.	1689 (1689)	Wing A3113A; ESTC R30709	47,738	222

to please the Learned I intend to shew a greater Use thereof in Medicine by the Explication of Diseases and their Symptoms and the Remidies we may obtain therefrom with the manner how they act Errata Pag. 7. l. 4. read but they p. 9. l. 10. r. Harts-horn p. 13. l. 8. different ib. l. 9 -gulations p. 14. l. 3. a salt ib. l. 5. disssolve it p. 50. l. 13. absorbed p. 56. l. 17. it self p. 59. l. 9. leaves p. 63. l. 20. Retine p. 64. l. 22. Retine p. 65. l. 16. dele of p. 68. l. 11 Retine p. 72. l. 2. and. ib. l. 20. hath p. 79 l. 14. or one p. 99. l. 19. with p. 101. l. 21. dele the. p. 105 l. 21. dele the. p. 106 l. 10. it p. 115. l. 1. become p. 127. l. 15. you have p. 139. l. 16. add one p. 165. l. 3. be as CHYMICAL DISCEPTATIONS Or SOME DISCOURSES UPON Acid and Alkali EUBULUS DEar Pyrophilus We shall at last arrive at the End of our Errors and Draw from the Fountain of Nature it self Those Necessary Lights which can make us Philosophers PYROPH What say you Eubulus EUB. I say nothing but what I can convince you of by evident Reason and certain Experiments PYR. How have you discovered the Truth EUB. The Reading good Authors and the Converse which I for some time have had with learned Men have quite demolished all my Prejudices and made me Examine things with as much Freedom and Impartiality as I had before of Antipathy I have constantly observed That Authority eve● to this present time hath been an Invincible Enemy both to Physick and Medicine and the very Rock upon which all the Famous Men of the past Ages have rely'd and is indeed at this day the Cause of so many Sects and different Opinions which we see in the Schools Whereas Reason and Experience are the only True KEYS which can give Admittance in●o either of these Sciences for ●o be a Philosopher it is abso●utely necessary to banish Au●hority and to follow Reason ●nd Experience I am not ●ble sufficiently to admire the ●rosperous Success and Exact●ess of the Anatomists and Chy●ists of our Age The first ●aving discovered to us in the Body Parts Humours and Uses ●nknown to the Antients and ●he Last have withdrawn us ●rom that erroneous Darkness wherein the Four Elements and ●heir First and Occult Qualities had plunged us giving us Principles as clear as those were obscure PYR. I have alwaies told you That Anatomy and Chymistry were great Assistants to Physick and Medicine and that they enlighten us much where we attain it only by their Experiments EBU. I do not design to Entertain you here with the New Discoveries of Anatomists upon Humane Bodies I shall only speak of those which Chymists have made us take Notice of in the Dissolution of Mixts Know that for this Effect They acknowledg two sorts of Principles of which some they call Active Principles and others they stile Passive Principles The Active Prin●iples are the Causes of all the Actions and all the different Motions which are done in Nature The Passive Princi●les on the contrary are not ●apable of any Action but serve only as Matrixes to the active Principles for them therein to make their Productions PYR. VVe cannot desire an exacter Distinction of Principles but how many have you of either EUB. There is some Controversy amongst Chymists about the Number of Active Principles Some will have Three which they call Salt Sulphur and Mercury pretending that these are the last Bodies they find in the Resolution of Mixts By Mercury they understand the most subtile most penetrating and most aetherial Substance in the Mixt. By Sulphur all that which is therein oleagenous and inflamable and By Salt and that is dissolved in Water and coagulated by Fire they say The Mercury or Spirit is the Soul of Bodies That it gives Motion and Life to Animals That it makes Plants grow brings forth blowers and ripens Fruits also that it renders Stones and Mettals perfect That the Sulphur or Oil Causes the Diversity of Colours and Odors the Beauty and Deformity of Bodies and That the Salt is the cause of the Tastes Weight Solidity and hardness of Mixts Others acknowledg that there are Salt Sulphur and Mercury in all Bodies they demonstrate also by several Experiments That these Three Substances are composed of Two others a great deal more simple viz. of Acid and Alkali Salts and that Salt Sulphur and Mercury are no other but these Two Salts at liberty or intangl'd In effect you shall observe That there are Two sorts of Salts there are some Simples which are not compounded of any other Substance and some Compounds as are all the compound Mineral Salts and essential Salts of Plants which are composed of simple Salts and passive Principles notwithstanding in such sort as the Acid which is the first of these simple Salts predominates therein And these Salts are called Salts because they are dissolved by Moisture and coagulated by Driness The simple Salts are either Alkali or Acid the Alkali Salts are either Fixed or Volatile the Acid Salts are alwaies in a Liquor therefore called Acid Spirits nevertheless these Acid Spirits are no other but Acid Salts dissolved in a little water The Alkali Salt on the contrary is almost alwaies in a Body it is as I said but even now either fixed or volatile the fixed Alkali Salt is never elevated by the action of Fire as Salt of Tartar and all those Salts which are drawn from Plants by Incineration which we call Lixiviate Salts as those of Scordium Tamarisk c. The Volatile Alkali Salt on the contrary is elevated with the least heat of fire and is drawn chiefly from Animals as the Volatile Salt of Vipers Harts c. There are Three Sorts of Mercury or Spirit an Acid Spirit as that of Niter Allum Vitriol c. A sharp or biting Spirit as that of Harts-horn Urine Vipers c. and a burning Spirit as that of Wine Beer Cyder c. The Acid Spirit is an Acid Salt dissolved in a little Flegm The sharp biting Spirit is an Alkali volatile likewise dissolved in a little Flegm and the burning Spirit is a Sulphur and a Sulphur is an enveloped Acid. All Chymists in effect agree That there are two passive Principles viz. Water and Earth or Flegm and Caput Mort. The Water serves as a Menstruum and Dissolvant to the Acid and Alkali Salts and it is extracted by Distillation from those Bodies which contain it The Earth serves as a Bond to these Two Salts it is extracted commonly after the Extraction of the Lixivious Salt. It is to be noted That according to the different Mixture of these Four sorts of Substances and the different Rangings of their Parts there are made different Productions in Nature sometimes of Animals sometimes of Vegetables and sometimes of Minerals PYR What do you mean by Acid Salt and Alkali Salt EUB.

sibi ipsis Utrumvis vero seorsum neque ulli alteri neque sibi ipsi sufficiens est All living creatures saith he as well all other things as Man himself are constituted of two Principles different in Faculty but concording and fit for use These two together are sufficient for all other things as well as for themselves but either of them severally and apart is neither sufficient for any other nor for themselves These two Salts are never at rest if they be not united one with the other and as soon as they are once united have nothing but love and sympathy one for the other which we take notice of by an Infinity of Experiments as by the sympathetical Inks. The first Sympathetical Ink. THere must be made two different Liquors in two separate Vessels The first which is that we must write with is made with distilled Vinegar and Ceruse which must be made to boil together for the space of an hour in a well stopt Vial then filter them through grey Paper and reserve the Liquor which comes therefrom in another bottle well stopt The Second which causeth the writing to appear is made with Calx Vive Orpiment and common water after the same manner as the former We Write with the first of these two Liquors and we apply upon the Writing a paper imbued with the last the Writing that was invisible appears at that instant as black as if it had been writ with the best Ink in the world For to understand clearly the cause of this so surprising Effect we must take Notice That the Calx vive and Orpiment abound with Alkali and that these Alkali's wherewith we did imbue the Paper quits the Paper to absorb the Acid of the Vinegar and so the Writing appears But that which is more surprising is That the Alkali's of Calx Vive and Orpiment can pass through a Ream of Paper a Table and a Wall to absorb the Acids of the Vinegar which is observed by the Writing which at the same time appears and by the Impression and odour which it e●aves on the Paper The Second Sympathetical Ink. WE must write with an Ink made of Cork Coals and Gum-Arabick and the Writing will appear most black then rub this Writing with the Liquor made with the Calx Vive and Orpiment and it wi●l at that instant disappear and will never reappear if it be not rubbed with some acid liquor as with that which was made with distilled Vinegar and Ceruse The Alkali's of Calx Vive and Orpiment absorb as you see the Acid of the Cork Coals and Gum Arabick and so obliterates the Writing which reappears as soon as it is rub'd with some Acid liquor because the Alkali which had absorbed the Acid of the Ink quits it to absorb that which one casts thereto thus the Writing re-appears The Third Sympathetical Ink. THis third Experiment teacheth the way to transcribe in a Moment all sort of Books and Characters and to draw out all sorts of Prints Take Venice Soap cut into little bits and Oak-ashes equal parts and about as much Calx vive cause them to boil in a new bottle with common water then philter them through grey Paper and rub with a fether dipt in the Liquor which shall come therefrom the Book or Image which you would draw put some white Paper which you shal also rub with the said Liquor between each leaf of the Book put this Book between two pressures in a quarter of an hour it wil be drawn the Letters or Picture not being in any wise hurt The Reason of this Experiment is That the Acid of the Ink which always over-powers its Alkali and which in process of time blots out the print or writing does fortify the Acid of the Liquor wherewith we did imbue the Paper in uniting it self with its Alkali and consequently prints all the Characters of the Book on the Paper after such fashion as they are in the book printed or written only as much Acid as the Alkali thereof could absorb so that the writing becomes fairer and nearer than it was before It is for the same Reason that Acids as spirit of Niter obliterates writing because they choke the Alkali thereof and that strong Alkali's such as the Infusion of Gall-nuts causes them to reappear when they are rub'd therewith and renews antient defaced Books and Writings because they charge themselves with the Acid which had blotted out the Writing These two Salts are at rest as soon as they are united they cause the Diversities of all the Phenomena's which we see in Nature They are the cause of the permanent colors which we behold and of the Odours we scent and Savors which we perceive for according to the different Mixture of these two Salts the different Nature and the different Ranging of their parts the Retain is differently struck and we behold different Colours and the olfactory Nerves papillous Nerves of the Tongue are also differently struck and we taste and smell differently PYR. I earnestly desire you would yet more explain to me how Acid Salt and Alkali Salt joined together cause in us all these different Sentiments 〈◊〉 of which you tell us EUB. Whether the diversity of Colors which we behold comes only from the divers Reflect●on of the Light whether they com only from the different Impression which a coloured Body makes upon the Air and the Air upon the optick Nerves or whether lastly they may be no other but Attoms or Corpuscles which go out continually from Bodies and striking the Retain cause in us different colours it 's alwaies constant That the principal cause of permanent colours comes only from the different Nature and different Mixture of Acid Salts with Alkali Salts which we may observe by divers Experiments The first Experiment ALl Acids destroy blew colours and all Alkali's make them re-appear The Second Experiment SYrup of Violets which is a Composition of Acid and Alkali becoms of the fairest Green in the world when it is mingled with some Alkali as with oil of Tartar made per deliquium and reddish when some Acid is mingled therewith The Third Experiment OIl of Vitriol is a powerful Acid makes a black Composition with an Infusion of Gall-nuts which is a powerful Alkali The Fourth Experiment A Decoction of Red Roses becomes ruddy by Mixture with Acids and black by Mixture with Alkali's The Fifth Experiment MErcury is elevated into Cinabar by common Sulphur and becomes a fair Red and the same Mercury sublimed dissolv'd in water and then precipitated by Alkali's falls down in a pouder sometimes red somtimes white yellow citrine c. according to the nature of the Alkali which precipitated it and as the Alkali absorbed more or less the Acid which held the Mercury in Dissolution The Sixth Experiment SSpirit of Niter which is a great Acid renders the Juices of Herbs which abound in volatile Alkali as white as Milk. Distilled Vinegar doth the same with Litharge in

Effervescence as of spirit of Niter with oil of Tartar if on the contrary one of these two Salts is weak and the other strong as are the Alkali of Water and the Acid of Oil of Vitriol well deflegmed there is only made a little heat without effervescence if the Acid which is mingled with the Alkali is dis-intangled from its own Alkali and passive Principles as the Acid of Oil of Vitriol there is made a Fermentation with Heat and Effervescence and if on the contrary the Acid is intangled as in Vitriol in its Body there is only made a Fermentation with Effervescence without Heat In like manner if these two Salts are exalted and dis-intangled one from the other and from the passive Principles they take fire at the same time that they ferment as Calx vive doth when it is sprinkled with some Vinegar In a word if these two Salts are weak the Fermentation is insensible There are few Fermentations made but there is at the same time made a Precipitation tho' there are several Precipitations made without Fermentation as in the Precipitation which is done by Acids of Mercury sublimate dissolved in Water Precipitation is a Dis-uninion of a dissolved Body from its dissolvant in such manner that being separated therefrom it falls by its own weight to the bottom of the vessel which contain'd it Precipitation is made several wayes for either it is an Acid which holds an Alkali in dissolution or it s an Acid which is dissolved by an Alkali as it happens in the Composition of Regulus of Antimony in which the Sulphur of Antimony which is an Acid is separated from the Regulus and remains in the Foeces dissolved by the Alkali's of Tartar and Niter If it is an Acid which holds an Alkali in dissolution where the union is so perfect that there is not the least Pore empty as in all the compound Mineral Salts as Vitriol the Precipitation cannot be made but by an Alkali or else where the union is not so perfect and there remains a great many Pores which are not filled by this Acid as in corrosive sublimate The Precipitation may be done as well by Acids OTHER DISCOVRSES UPON Acid Alkali PYROPH THOSE Arguings which we had at our last Meeing have almost wholly persuaded me of the Verity of the Hypothesis of Acid and Alkali But I must confess dear EUBULUS that I have been extreamly shaken by the Reflections of the Incomparable Mr. Boyle upon these Principles which are lately fallen into my hands and the Objections which he makes are so strong that it seems impossible to bring a solution thereof EUB. I doubt not but that the Objections which the leared Mr. Boyle makes against Our Hypothesis have much seeming Truth in them but nevertheless I believe that they may be resolved with great Ease when one very exactly considers what I have said to you concerning the nature of these two Principles and all their force will serve to make the Truth of this Hypothesis the more conspicuous PYR. Mr. Boyle thinks it strange That they should explain all the Qualities of Bodies and the other Phoenomena's of Nature by this new System and that they attribute to it an Extent which ought only to be given to Matter and Motion EUB. You may easily conclude by the several Phoenomena's of all sort of Species which I have explained to you according to these Principles That it will be easy to Explain all those which they shall be able to prefer and I do not see Why the Extent that is given to this Hypothesis ought to be different from that of Matter and Motion since that in it self is found the Existence of the Matter and Cause of Motion PYR Our illustrious Englishman pretends That they have not made Experiments enough nor sufficient Inductions to prove That Acid and Alkali are to be found in all Bodies and in all the sensible Parts of Mixts and That they ought not to conclude that these Two Salts are to be found therein because such or such Effects are the Emanations of these Principles as for Example When the Patrons of Acid and Alkali see Aqua Fort. or Spirit of Niter dissolve Filings of Copper they conclude thereupon That the Dissolvant which is Acid meets in those filings of Copper with an Alkali upon which it works Whereas they do not take Notice That a well deflegm'd Spirit of Urine which in their Hypothesis is a Volatile Alkali dissolved in a little Flegm do's dissolve filings of Copper as readily and much more naturally than Aqua Fort. doth EUB. I believe you have sufficiently proved by those Experiments which I brought you That there is Acid and Alkali in all parts of Mixts It is most easy to separate these Two Principles from Animals Vegetables and the most part of Minerals but as for Metals These Principles are therein so strictly united one with the other That it is almost Impossible to dis-unite them Nevertheless we see therein the same Effects as we know are produced in other Bodies by Acid and Alkali and therefore we have good ground to believe That these principles are also to be met with therein and That the same effects are produced by the same Causes Thus when we see Spirit of Niter and the volatile spirit of sal Armoniack dissolve filings of Copper we conclude That there is Acid and Alkali in those filings and That the Acid spirit of Niter acts on the Alkali which it finds therein and the sharp spirit of sal Armoniack on its Acid for 't is a sure Maxim That Acid spirits never act nor ferment but with Alkali's and Alkali's on the contrary never act upon any other Bodies but Acids and thus Mr. Boyle's Objection is of no force seeing Spirit of Niter and Spirit of sal Armoniack meet in the filings of Copper with different Parts upon which they act differently and they act not any otherwise on the same subject PYR. He continues his Objections by an Experiment like the former He saies That in the Solution which is made of Iron by Acid Spirits they are wont to attribute this Effect to the Acidity of the Liquor which dissolved it although Iron is dissolv'd redily enough and also in the Cold too in sharp Spirits EUB. This Objection is as easily resolved as the former for there is found in Iron as there is in Copper Acid and Alkali The Spirit of Niter acts on its Alkali and the Spirit of sal Armoniack on its Sulphur or Acid and 't is sufficient that the one or other of these Two Liquors act upon the Alkali or Acid of the Iron to make the Metal change its Form as for the rest it is sufficiently easy to know That there are Acid and Alkali in Iron by this That Iron cast into Cream hinders that the Butter cannot be made in as much as it charges it self with the Acid which ought to make the Coagulation and there are none but Alkalies which have the Priviledge to

into the Heart where it is subtilized and begins to be changed into Blood and by circulating several times from the Heart into the arteries from the arteries into the Veins and from the veins into the Heart again it is rendred proper to nourish the animal the subtiler parts whereof penetrating as vapours thro' the Tunicks of the arteries and joining and uniting themselves to the Parts nourish and augment them and the rest is drained into the Liver Reins Pancrea's c. and according to the Laws of Circulation repasses into the Veins and from the Veins into the Heart where it is refurnished with Spirits by the means of a Ferment which is contained in its Ventricles and by the Mixture of the Air which insinuates it self through the Lungs into the Heart I could prove by many Experiments That the pancreick Juice comes not from the Spleen to the Pancrea's Pag. 79. as you pretend But as the thing is of it self sufficiently clear and that we need but observe the structure of these two Viscera's and the communication that they have one with the other to convince you thereof It will be sufficient to cause you to take Notice of that which modern Anatomists have several times experimented That after the Spleen hath been taken from Dogs the Wound being consolidated these Dogs have been as well as if they still had their Spleen and we draw a pancreick Juice therefrom altogether like that which we ordinarily draw Wherefore if the Spleen did communicate this Juice to the Pancrea's it is certain That these Dogs whose Spleen was cut out would languish and Nutrition would no longer be perfectly made because the Chyle is not fermented with the Bile for want of the Pancreick Juice which is the Menstruum that dissolves these two Bodyes and which puts them in action there would also be no longer any secretion of the Cream of the Chyle from the Excrements and we could not be able to draw a Pancreick Juice from these Animals for the Cause being remov'd there is no longer any Effect sublata Causa tollitur Effectus The pancreick Juice comes not then from the Spleen to the Pancrea's but is a Liquor which is strained in the Pancrea's as the Serocity in the Reins It is not a vain Fancy as you go on to believe Pag. ●3 That the Lympha is a Serocity which is separated from the Blood and from the nervous Juice in the Glands if you had examined the substance of the Glans and the Vessels which terminate thereto you would judge otherwise thereof You would see that the Glands are as so many strainers through which the Serosity is strained and there terminates thereto four Sorts of Vessels namely Nerves Arteries Veins and the Lymphatick Vessels the Arteries carry Blood thereto which the Veins re-carry to the Heart according to the Laws of Circulation the Nerves carry the animal Spirits or nervous Juice thereto and the Lymphatick Vessels draw thereto the Lympha and is discharged thereof as I have already said into the thorachick Pipe and into the descending Vena cava You see from hence That since the Glands have no other Vessels which administer thereto but Nerves and Arteries it neceassrily follows That the Lympha is a Serocity which is separated from the Blood and from the nervous Juice in the Glands You say There is neither Acid nor Alkali in the Seed because that being the Decidu of or that which is fallen off from all the Body Pag. 109. and the Recidu of the last Aliment it suffers neither the one nor the other since they have been separated therefrom in the first Concoction of the Aliment and are not to be ound in the second which is the Haematose and yet less in the Third which is the assimilation or Nutrition of Parts You add That if there were Acid and Alkali in the Seed it would be destroy'd by the continual Ebbulition and Fermentation which is made thereof It is to be admired that you can be of this Opinion seeing according to the Doctrine which you would establish you cannot deny but the seed hath the same Principles as Flesh Blood Bones Horns and other parts of Animals and 't is otherwise indisputable That Meat Blood and Milk which grow sour when they corrupt contain Acid and the Volatile Alkali's which are drawn in abundance therefrom are Proofs no less certain That there is an Alkali therein whence it follows That these two Salts are also to be found in the Seed since according to what you affirm It is only the Residue of the last Aliment of of those parts as for the Objection which you make That if there were Acid and Alkali in the Seed it would be corrupted because of the continual Fermentation which is made theteof You shall also observe That these two Salts never act except they be dissolved or excited by some external Agent as Heat or by the mixture of some other Body as it happens when the Seed of the Male and that of the Female come to be mingled together and to be heated in the Womb for then all their parts are put into Motion and there is made a Patern or rough draught of all those of the Foetus the more subtile parts of the seed retire themselves to the Center and scatter to the Circumference those which their grossness or figure render less proper for motion from which are produced the Membranes which environ the Foetus and the more subtile parts continue their motion in the middle dis-intangling themselves from those whose figure is not proportionable to theirs and uniting themselves to those which are with them conformable and so those which are Decidued or fallen from the Brain or more properly those which are found proper to form the Brain unite together and produce the Brain Those which ought to form the Heart unite together and form the Heart and so of all the other parts and when it happens that the Man's Seed overpowers that of the Woman's there is formed a Man as there is formed a Woman when that of the Woman's is stronger than the Mans and we may believe that there may be an Hermaphrodite when both Seeds meet together in a perfect Equality Where you begin to treat of Acid and Alkali you tell us You can hardly give your Opinion thereof Pag 89. because it is difficult to declate it upon a matter which 'till now is undetermined yet nevertheless you as it seems decide it so absolutely as if it were the most known and determined Truth in the World. You pretend that Acid is a principle of Death and the Alkali a principle of Life Pag 96. that is to say That Acids are the Destroyers of Bodies and Alkali's on the contrary the Authors of their Construction For to make the Probability of this Maxim disappear one needs only to make reflection upon what I have spoken thereof in my Discourses upon Acid and Alkali where I have spoke of

least Harm yea be very Beneficial by accident in some Respects in some few Diseases of which the most noted are a Frenzy Quinsy Pleurisy an inveterate and stubborn Head-ach and in some Fevers which be in no wise malignant as also in Contusions Rheumatisms and Intermitting Fevers but it must be in young and strong Bodies if it be done without any cause of Fear and in some few other Diseases But especially it is most proper to temper the plethorick Bodies of our age who by an extravigant Destruction of vious Liquors cause themselves to abound in that pretious balsamick vital Liquor It helps a Frenzy by abating the Effervescence of the Blood in diminishing the Vital Spirits It helps a Quinzy by Revulsion and drawing back the Blood into the Veins which would have putrified there that it may supply the loss of that which was let out In a Pleurisy it obstructs also the Apostumation of the Blood collected in the Pleura and Intercostal Branches of the Aorta by Revulsion for that Blood there ready to putrify by reason of the great heat of the Parts and its own Disposition to Putrefaction does as the Blood is drawn out of the Arm repass into the Superiour Arteries and so becomes again circulated in them the Abscess thereof being thereby prevented It cures an inveterate Head-Ach by reason it appeases the Fury of the Spirits there and by reason it depleats the Veins and Arteries wherefore 't is they are not so distended and pained as before And as for Fevers I have told you already how it comes to be assisting to their Cure only intermitting Feavers accidentally are cur'd by altering the Cirlation and by putting Nature into a Fear of Death wherefore she musters up all her Forces to oppose it whereby very often the Root of the Fever is in this great Hurry and Commotion cut off and expell●● for as Duretius saith Animi act ones incidente aliqua occasione fortius agunt presertim in morturis Whence also in Swoonings and Aopoplectick fits it proves beneficial and hence also it is That great Fears have often been a means by stirring up all the natural Forces for their own Safety to rid some Persons of chronick accute and almost incurable Diseases as Experience has often manifested Rheumatisms it cures by Derivation and so it doth som Coughs by causing the sharp Lympha which Tickles the Lungs by its sharp pointed Corpuscles the which also afflict the Nerves and Tendons with accute Pains to be discharg'd from thence mediately into the subclavian Veins to supply the loss of the Blood let out and into the Mesenterial Glandula's to be mixed with the Chyle also to promote the speedy making the like quantity of Blood hence sometimes doth the Cause of a greedy Appetite proceed afte● Blood-letting and after the retreat of a sharp Disease for Nature being studious to repair her loss and especially When she has not been too much weakned by the Disease or Blood-letting do's manifest her wants by these hungry Symptoms It seems to assist the Circulation of the Blood when it is congealed by reason of the Obstruction of its Circulation in the small Veins which by the Contusion are so squeezed that they wholly deny its flux because it seems to afford it more Room for that Circulation but if we consider That the Blood is Conglebated only as I said in the smallest Veins and that the thinnest and most fluid Blood spins out at the Orifice we cannot think it can much further its quiet Circulation since fluidity is the greatest Promoter of it Lastly By its wasting the Spirits and depriving us of that pure nutritive Juice the Blood it keeps us back not suffering Nature to store up so much Nutriment to her self and thereby renders us equally as needy as if we put a greater restraint upon our Appetites and indulged them far less than we do To the former Advantages by Phlebotomy here is added by another hand this further Benefit viz. That it is of excellent use for Women whe● their Terms dodg with them and begin to leave them and to prevent the settling of them in their Limbs or in their own Vessels putrifying and causing Ulcers Sores Piles and Fistula's in the inferiour Parts c. to prevent all which Evils Women so affected ought to bleed once a month for 3 Months together FINIS Errores Phlebot p. 10. l. 18 Crebrò p. 11. l. 5. Fat. p. 12. l. 6. above p. 15. l. 5. as the. Advertisement All Dr. Salmon's Works are certainly to be sold by Tho. Dawks living on Addle hill in Carter-lane near S. Paul's Church-yard Also the said Doctor 's Medicines truly prepared are in his absence to be sold by his Wife at his House at the Blew Balcony by the Ditch-side near Holborn Bridge There is also preparing for the said Dawks's Press A Practical Discourse concerning Swearing Not only-sharply reprooving the vain false rash inconsiderate Swearer but also chiefly reprimanding the Over-wise Quaker in the midst of all his vain-glorious Shew of seeming Holiness proving that he most abominably abuseth all those Scriptures he brings for Refusing to take an Oath before Authority when the Law of God commands it and the Glory of God as well as the Necessity of his Neighbour require it c. Place this leaf last of all