For after the chicken is well nigh compleated when his Head and Eyes are distinctly to be seen the Chalazae are still found in the Egg far remote from the Chicken and still entire being then depressed from the two ends of the egg to the sides and do execute as he also confesses the office of Ligaments to keep the Yolk in its true position within the White Nor is that true neither which Fabricius addes to justifie his perswasion namely that the Chalazae are seated directly under the Obtuse Angle of the Egge For after the first days Incubation the Liquors shift their stations the Yolk is exalted and the chalazae are depressed from both ends as hath been said He is also deceived when he saith that the chalazae are parts of the Egge for in truth the egge is constituted onely by the Yolk and the White but the chalazae as also the membranes are onely certain litle Appendixes of the White and nothing else but meerly the extremities of the membranes contorted and twisted as filaments or strings are twisted into a Rope that so they may the better preserve the Liquors in their proper places by a firmer tye And therefore his Inference is infirme when he saith The chalazae are found to be in that part of the egg where the chicken is made and therefore the chicken is made out of them For even according to Fabricius himself that can no wayes be who confesses that the chalazae are to be found in the two extremities of the egg and yet denies that the chicken is any where made but onely in the Obtuse end of it in which end truly from the very first setting out towards the Generation of the Chicken there is no chalazae to be found at all Nay if you make tryal in a New-layd Egge you shall find that the superiour chalaza is not directly seated under the Obtuse end or the cavity thereof but inclining something to the side nor on that side neither where the cavity doth tend but rather on the contrary side Moreover it hath been shewed before that the scituation of the Liquors immediately upon Incubation is shifted because the Oculus or Eye of the egge being enlarged by the colliquamentum is exalted to the cavity in the Obtuse Angle upon which the liquors and chalazae at each end do remove to the sides For the Macula or Speck which before Incubation was seated in the middest between both the extremities of the egge now being inlarged into an Oculus or Eye is adjoyned to the cavity in the Obtuse end and one of the chalazae is deposed from the Obtuse Angle and the other is exalted so much as the other is deposed from the Acute Angle just as the Poles of the World are seated in an Oblique Hemisphere and at the same time the greatest part of the White especially of the grosser part of it doth sinck down to the Acute Angle Nor is that true neither where he endeavors to infer a probable argument to prove the chalazae to be the Matter of the Pullus from the likeness similitude of their consistence alleadging that the chalazae do represent the first formation of the Chicken by their figure and longitude and have also as many twists or knots as there are principle parts in the Chicken Nor is that corpus Rubrum which he also took for the Liver or red substance in the chalazae or any thing neer them but in the middle of the colliquamentum candidum and it is the rudiment of the Heart onely Nor doth the example of the Tadpoles alleadged by him square to his purpose of which saith he you can onely discern their Head and Taile that is their Head and spine of the Back having neither fore-legs nor hinder-hinder-legs And he proceeds that whosoever seeth a Chalaza and one of these conceptions will think he sees one and the same body Now I have made many dissections of these Tadpoles and have seen a pretty large Belly in them and in that Belly Guts and a Liver and a Heart panting and also I have discovered their Head and Eyes too But that which Fabricius takes for their Head is their round figure from which they are called Gyrini because their form or figure in gyrum vertitur curles into a round They have also a Taile by which they swim but legs indeed they want Yet about the Solstice they lose or cast their Taile having then hinder-hinder-legs and fore-legs beginning to strut out Now there is nothing in the first division of a Chicken into his Head and Spine that any way resembles this which should any way induce us to believe that the Chicken is made out of the Chalazae in manner of a Tadpole To proceed farther in the confutation of this matter the worth of Fabricius a man so exceedingly well skilled in Anatomy forbids nor indeed is there any great need since the thing is so evident in our History He at last concludes that this his opinion is wondrous old and was on foot in Aristotles dayes But I rather think the opinion of Ulysses Aldrovandus to be old by which it is thought that the Chalazae are the Cocks Treddle out of which and by which the chicken is procreated But neither of these opinions is true for that the Grandines or Chalazae the Italians call them Galladura and our Country-men the Treddle do either proceed from the Cock or are his seed is a vulgar error and an old Wifes tale both heretofore and in our times The Grandines saith Aldrovandus are the Cocks sperme because no fertile Egge is without them No nor infertile Egge neither which he or knew not or did not declare And this Fabricius indeed acknowledgeth but while he denyeth the Cocks seed to enter into the womb or to be any where found in the Egge yet he still contends that the Chalazae before any other parts of the Egg are chiefly stocked with fecundity from the power of the Males seed and do contain a prolifical virtue though he could not observe that there is no difference or distinction at all between the Chalazae of the barren the fruitful egge But seeing he hath granted that the very rudiments of Egges in the Vitellary are as well fructified by the Cocks treading as those Eggs which are encompassed with the white I suppose the occasion of his so able a mans error was this It was hitherto as we have often said the received opinion of all Philosophers and Physitians that the Geniture of the Male or Female or of both together was the subject matter in the generation of Animals out of which residing in the Uterus after coition the Animals are generated in like manner as Plants are made and spring out of the seeds sowen in the ground nor was Aristotle much distant from this opinion who would needs have the menstruous blood to be the womans which the Males geniture doth coagulate and so constitute the conception Now the fore-said Error being granted by all for
plainly see that the Liver grows to the vessels and is generated some time after the Blood is born and that its parenchyma is produced by the Arteries which administer matter to frame 〈◊〉 and also that for a while it continues white and without blood which is likewise common to other parts of the body For after the same manâ—â— and order as we have declared the production â—â— the Chicken to be out of the Egge doth the 〈◊〉 ration of Man and all other Animals proceed By which it appears how incongruous their perswasion is though it hath obtained both of old and now too who decree the Liver to be both the 〈◊〉 where the Blood is wrought and the Author of it and do upon that account rank it amongst the â—hiefe and first-born parts of the Body who also give so much renown to this Viscus that they proclaim it to spring with the Heart from the first beginning out of the semen of the mother and do rigorously maintain the Fable de tribus Capellis or the three imaginary Bubbles In which Quire Parisanus of late with a loud but unmannageable voice hath sung his part of the Catch These honest men never took notice that the Vesicles move the Heart pants the Blood is now perfectly concocted before any track or foundation of the Liver appears Without all question the Blood is to be counted the Author of the Liver â—ither then the Liver the Author of the Blood For the Liver is made after the Blood and of it cleaving â—the Veins that contain the Blood Nor yet can I subscribe to the Aristotelians which repute the Heart to be the Author of the â—â—id For its substance also or Parenchyma is born 〈◊〉 the Blood and is then superadded to the Veâ—â—â—â—la Pulsantes But I am much in doubt whether Vesicula or Punctum saliens or the Blood that is to â—y whether the contained liquor or the containing â—â—ssels be the elder Now it seems in reason that â—â— container is made for the contained and therefore after it This indeed our cies can truly witnese â—â—â— the Veines are the first woof and the first visiâ—â— foundation of the body and that all the other 〈◊〉 are superadden to them and born after 〈◊〉 But of this matter hereafter more at large In the Interim we cannot chuse but smile at that fond and fictitious Division of the Parts into Spermatical and Sanguineous as if any part were immediately framed of the Semen and were not all of one extract and original But I return to our purpose The extent of the Colliquamentum doth not reach over more then half the Egge The Heart hanging out stands something off from the body And if you makes diligent inspection you may discover some of the Umbilical Vessels beat The sixth Inspection of the Egge EXER XX. ON the seventh day all things are clearer and the primordia of each particular part are now visible namely the Wings Leggs Genitals the divided Claws of the feet the Thighs the Sidesâ—ien c. Now the Foetus bestirrs it self and kicks and the Chicken is found complete there being no addition to be expected after but only the growth oâ— the parts yet tender which the more they encrease the more the White decaies and the out ward membranes uniting supply the place of the Secundina or after-birth as also the Veines do every day more and more represent the Navel Therefore I conceive it convenient to pass from the Seventh to the Tenth day because nothing worth observation doth intervene in the moâ—â— time though Authors usually especially Aristotle do not do so Notwithstanding all this if you observe many Egges at a time you shall finde some that are forward and better grown have all the parts apparent in them other Truants will present them Iess distinct Though on the other side many things concurre to the work as the Season of the year the warmth of the Nest Outward cherishings Deligent Incubation and the like I remember I have sometimes seen in a sluggish Egge the cavity indeed dilated on the seventh day and the Colliquamentum sprinkled ore with veines also a Magot in the midst of it together with the rudiments of the Eyes and other things which come to pass in other Egges about the fourth or fifth day yet there were no vesiculae pulsantes at all nor could I finde the Trunke or root out of which the Veines rise And therefore I justly counted it a seeble backward Egge endowed but with a sickly generative power and now upon the point to die And that chiefly because its Colliquamentum was more cleare and refulgent then usual and the veines did also shine a litle For when the Vital spirit departs that part first declines and corrupts which is first in order of Generation The Inspection after the tenth day EXER XXI WHatever is visible the tenth day is delivered so accurately by Aristotle that litle or nothing remaines to be added And this opinion according to my Paraphrase is thus The tenth day all the Chicken is visible and all pellucid and white save only the Eyes and divarications of the Veines And the Head is bigger then all the rest of the body besides and the Eyes stick fast in the Head or rather stick to the Head as Appendixes being yet unfurnished of a Pupilla or Eye-ball that is having none yet perfectly formed and yet it is no hard matter to discover the distinct coats or membranes for if then you pluck them out you shall finde them blacke and bigger then Beanes from which if you take off the skin there flows a white cold humour very refulgent if you hold it in the light and beside that humor there is nothing namely in the whole entire Head contained at all And this is the state of these parts from the seventh day to the tenth At the same time saith Aristotle the Viscera or Intrals also appear and all the appurtenances belonging to the Belly and Guts namely the Parenchyma of the Heart Lungs and Liver c. but all are white mucilaginous and washy and have no firm consistence in them And the Veines also that proceed from the Heart are applied to the Navel And from the Navel one Vein passeth to the membrane containing the yolke which is then more liquid and dissolved then his natural constitution uses to be But the other to the other membrane which containeth the whole membrane namely the coat of the Colliquamentum which encompasseth the Foetus and the Yolke and the interjacent humour For while the Chicken grows by degrees part of the yolk is above and part below but the White being in the midst is liquid And the white is also under that lower part of the yolke as it was under it before So farre Aristotle And now you may plainly see the Veines accompany the Arteries as well those which 〈◊〉 to the Whites as those which pass to the yolk The yolke also now dissolves and yet
nor move yet it is sufficient for them if they are made together with those parts which do rely upon them For where the things which are to be upheld are not in being the Props are provided to no purpose But nature doth nothing rashly nor constitutes parts before there is use of them But all Animals attaine their parts so soon as action and usefulness is required of them And therefore this first foundation of Fabricius his laying countenanced by his own observations in the Egge and Galens simile is clean demolished He seems to come neerer the Mark when hee saith The other foundation of producing the parts in order is desumed from Nature that is the soul which is Queen Regent of the animal body For since there are two degrees of the soul the Vegetal and Sensative and the Vegetal is tempore naturâ prior first both in time and nature because it is common to the very Plants doubtless the Instruments subservient to the Vegetal are first to be made and fitted before those that attend the sensitive and motive faculties especially the more principal ones and where the Queen keeps Court Now these are chiefly two the Liver and the Heart the Liver as the throne of the Vegetal or Nutritive and the Heart as that Minister of State who by his heat and warmth doth enliven and compleat both the Vegetal and other Faculties and therefore holds a strong league and confederacy with the Vegetal Wherefore if after three dayes Incubation you discern in that part of the egge where the Chicken is bred the heart panting as Aristotle also testifieth muse not at it but conclude that the heart relates to the vegetal Faculty and is therefore the first begotten Now it is also consonant to Reason that the Liver also should be Twinne to the Heart and born with it but doth not appear because he wants a palpitation which the Heart hath For even Aristotle himself saith That the Liver and the Heart are constituted in the body upon like grounds so that if there be a Heart there must be a Liver too If therefore the Liver and Heart are first begotten it also followes that the other Organs that are menial servants relating to these two should be begotten together with them as the Lungs for the Heart and for the Liver almost all the parts which are contained in the Lower Belly But all this is very wide from that order and progress which we see in the Egge Nor is it true that the Liver is born together with the Heart nor will that shift serve his turn where he pretends Latere Jecur quia non palpitat that the Liver lyeth concealed because it is not exposed by palpitation For the Eyes the Vena Cava and the Carina the Keel are discerned even from the very first yet have they no palpitation What impediment then to barre the Liver and Lungs if they are then in being from being seen Nay he himself in his Figure or Table representing the fourth day hath described a small Point in the midst and yet he hath not signified any palpitation belonging to it nor did he own it for the Heart but supposed it to be the first rudiment of the body wherefore he speaks onely out of conjecture and preentertained opinion when he proclaims the Principality of the Liver as other men have also done namely Aldrovandus and Parisanus who casually lighting upon two Points and could not discover a Pulse in both at one and the same time conceived the one to be the Heart and the other the Liver As if the Liver had any pulse at all but those two Points are the two Vesiculae Pulsantes returning answer to each other in alternate contractions as hath been noted in our History Wherefore either Fabricius is deceived or doth deceive where he saith Presently in the first progress of generation the Liver Heart Veines Arteries Lungs and all the parts contained in the lower belly likewise the Keel that is the Head with the Eyes and the whole Spine and Chest are born and framed For the Heart Veins and Arteries are perfectly distinguished for some time before the Keel and the Carina or Keel before the Eyes and the Eyes the Bill and Sides before the Members contained in the lower belly and also the Stomack and Guts before the Liver or Lungs are discerned And that order is observed in generation which we shall presently describe He is likewise deceived when he decrees the Vegetal part to have a being both in time and nature before the sensitive and the motive For that which is first in Nature is for the most part after in the order of Generation In time indeed the Vegetal part is before because the sensitive soule cannot be without it For it cannot actually exist in the body without Organs it being Actus corporis Organici the Act of the Organical body but the sensitive and motive Organs are the workmanship of the vegetative and the sensitive soul before it actually exist is tanquam Trigonus in Tetragono like a Triangle in a Quadrangle But Nature first intends that which is most principal and noble and therefore the Vegetal faculty is after in the order of Nature as being subservient to the sensitive and motive Faculty Of the Order of Parts in Generation according to Aristotle EXER LV. THat which relates to the order of Generation according to Aristotle is thus When the Conception is ordained it proceeds as Seeds do For Seeds also have a first Principle in themselves which being first contained in potentiâ when by and by it is severed it sends forth a bud and a root whereby it attracts aliment for it requires growth So in some sort in a conception where the parts are all in potentiâ the Principle is chiefly active This Principle in an Egge analogous to the blossom of Plants we with Fabricius call Macula a Speck or Cicatricula a small Cicatrice which we have avouched to be the principal particle in which all the other parts are in potentiâ whence afterwards they arise in their order For in it is contained that thing be it what it will which renders the Egge prolifical and there is the first effect of the vegetal heat and operation of the Forming faculty first discovered Macula isthaec that Speck as hath been shewed is presently dilated after incubation and divided into Circles in whose Center a small white Point like the Cicatricula in the ball of the Eye doth display it self where by and by the Punctum rubrum the Red point is discovered panting with the capillary branches of Veines containing blood and that presently so soon as ever the Colliquamentum by us mentioned is framed of that Macula Wherefore Aristotle proceeds The Heart is first actually discerned and that not onely discoverable to sense but according to reason For since that which is begotten is now disjoyned from both parents it ought to demean govern and dispose of it self as
All Viviparous creatures have both their original and perfection in the womb it self but all Oviparous as they have their foundation within their parent and there become an egge so are they compleated into a foetus when they are divided from their parent And in the Catalogue of these some creatures continue their eggs so long within themselves till those eggs be ripe and accomplished and thus doe Birds and Beasts too as many as bring forth eggs and serpents likewise But others againe expose their seed whiles it is yet unperfect and immature to acquire its growth perfection and ripeness from abroad and thus do many sorts of Fishes Froggs also Fishes without scales and both sorts of Shell-fish and Snails whose eggs when first excluded are but designes or beginnings being yolks onely which do afterward invest themselves with whites and by degrees attracting concocting and affixing aliment to themselves become perfect seed and a compleat egge And of this kinde also is the seed of Insects which Aristotle saith is a Worme which being exposed incomplete at the first seek their own food and so thrive and enlarge from an imperfect egge to a perfect egge and seed But the Henne and all other Oviparous creatures doe lay a perfect egge of which from without the womb they hatch a foetus And for this cause Aquapendens mentions two places assigned to generation one Internal namely the womb the other external which he calls the Egge But in my opinion he might upon better grounds have called the Nest or Repository the external place because in that the exposed seed is cherished ripened and hatched into a foetus For the Generation of Oviparous creatures is mainly differenced by their Nest Nor is it less then admirable that such little creatures should make choice of these receptacles with such exquisite prudence and shape build guard and conceale them with such unimitable art and contrivance whence we must needs conclude with the Poet treating of Bees that they are endowed with a portion of divine inspiration and that we may easier admire their uninstructed art and prudence then attain unto it Of the Ovary or upper part of the Henns womb EXERCITATION III. THe womb of the Henn is divided by Fabricius into the Upper and the Lower the Upper hee names the Ovary The seat of the Ovary is next under the Liver at the spine of the back above the descending trunk of the great Artery For just in that place where in bigger sangineous creatures the Coeliacal artery goes into the Mesentery namely at the original of the Emulgent veines or a little lower and in that place where the preparing seed vessels which go down to the Testicles have their rise in all other sanguineous viviparous creatures where also the cock wears his Testicles there is the Hens Ovary found For some Animals have their stones hanging out others conceal them about the Loins within in a middle space as it were at the beginning of the preparing vessels But the Cock hath his stones immediatly adjoined to the vasa praeparantia as if his seed wanted no preparation Aristotle indeed saith that the Egge is begun at the midriffe but we saith Fabricius in our treatise of Respiration deny that Birds have any midriffe at all Which difficulty is thus resolved Birds are not quite destitute of a midriff because they have a thinne membrane instead of the midriff which Arist calls cinctum or septum but they have no musculous midriffe as other Animals have neither is it used by them for Respiration But to say truth Aristotle acknowledged no muscles at all Thus in one and the same breath he accuses the Philosopher and excuses him too yet hee himself is in an Errour the while For it is certaine that Aristotle did acknowledge muscles as we have elsewhere observed and demonstrated and also that membranes in Birds which are not onely placed transversly to gird the body but are also extended according to the longitude of the belly do supply the place of the diaphragma or midriff and do conduce to respiration as in another place in our Exercitations concerning the Respiration of animals we have clearly proved And to say no more at present Birds do not onely respire with much more facility then other creatures but in their songs doe tune and accent their voices with manifold variety yet notwithstanding all this their Lungs are so knit to their ribbes and sides that they can be but very little dilated raised up or contracted Besides all this though no man to my remembrance hath ever observed so much before their Bronchia or extremities of the rough Artery are hollow as far as the very abdomen and they treasure up the inspired aire in the cavities of their membranes Even as Fishes and Serpents draw the aire into large bladders which are seated in their abdomen or belly and so reserve it and by that means are conceived to swim the better and as froggs and toads in the Summer time when they breathe most doe imbibe much more aire then at other times into their numerous vesicles which occasions their wondrous swelling that so they may afford more liberall exspirations in their croaking So in Birds the Lungs seem rather a thorough-fare and a passage for breathing then the adaequat organ of it Which had Fabricius observed he would not then have denyed but that those membranes at lest with the assistance of the muscles of the belly doe serve for respiration and execute the office of a diaphragma since even that is not a respiratory organ without the help of the muscles of the belly though it have also another imployment in those creatures in whom it is musculous and fleshy Namely to depress the stomack enlarged with meats and the guts distended with winde and excrements lest the heart and lungs should be straitned by their intrusion and the closet of life it selfe invaded Now since there is no fear of any such mischance in Birds their midriffe is membranous and exceeding advantagious to the work of respiration and for this cause they are said to have a diaphragma Moreover were birds quite destitute of a diaphragma yet Aristotle were not to be blamed for saying That Eggs receive their first rudiment at the septum transversum for by this name he onely points at the place where the diaphragma is commonly found in other Animals So we also say that the Ovary is scituate at the beginning of the preparing spermatical vessels though a Henne hath no such vessels at all The Perforation of the Lungs by me first discovered of which I made mention but now is in no sort dark and obscure but in Birds especially very patent so that in an Ostrich I found many perforations into which I could easily thrust the top of my finger In a Turkey nay in an ordinary dunghill Cocke and almost all Birds whatsoever a probe being put into the winde-pipe will finde an open and wide passage clean through the
proportion of the bulk of the Body is a pretty deal larger then that of the Limbs untill they are able to stand and go And therefore Infants are first Dwarfs and crawle like beasts attempt to move on though upon all four but go upright they cannot till the prolixity of their Legs and Thighs exceed the longitude of the rest of the Body And hence is it that their first venture to foot it represents them a prone kinde of Cattell which can scarce exalt themselves to the erection of a Cock. And therefore amongst grown persons the long slimme Fellows whose Thighs but especially their Shanks are longer then ordinary can stand walk run or vault longer and at more ease then square and well trussed men In this second Process several actions of the Formative faculty pursuing one another may be observed as in the Automata or engines that go of themselves where the fore-going wheel sets his follower upon motion too and all the parts spring from the same gelly and similar substance Not as some Natural Philosophers expound it who say that Like is hurried unto its like but we must say That the parts are moved not by changing their station but remaining where they were and altering in softness hardness complexion and those other differences of similar parts being now made those things Actu which they were before in Potentiâ that is the Limbs the Spine and the rest of the Body are altogether formed and encreased are together described and complexioned also the Bones Flesh Nerves and Gristles which were all similar at first in the same members and of one kinde of substance in progress of Time are plainly distinct and being conjoined make up Organical Parts by whose mutual connexion and continuity the whole body is compiled So in the Head the membrane growing every where light the Brain arrives to its consistence the Eyes are polished out of a fluid instable moisture Nature doth feed and enlarge all the Parts out of the self same Nutriment whereof the first did frame them not as many will have it out of a diverse one and such as is like to every particle namely by augmenting her same gelly or worm and like a potter first she divides her materials and she allots to the Trunk the Head and the Limbs every one their share or cantlin as Painters do who first draw the Lineaments and then lay on the Colours and as a Ship Carpenter first layes the Keel for a foundation and then sets up the Ribs and Breast-bone or Deck and as he builds a boat so doth Nature the Trunk of the Body and hasp on the Joints And in her work she begins all the similary part out of the same Primitive gelly or glutinous mass namely the Bones Gristles Flesh Nerves c. For at first there appears nothing of the Bones but a kinde of filaments or threddy fibres which afterwards become nervous anon Gristles after that like thorns and at last down right Bones So likewise the thicker Membrane investing the Brain proceeds first to be gristly and afterwards into a Skull while the thin Membrane doth improve into a Coat or Pericranium and Flesh And in the same Order the Flesh and Nerves out of a yeilding gelly do concoct and strengthen into Muscles Tendons and Ligaments The braine and after-braine from a thin Water coagulate into a Callous Curd for the braine of Infants before the bones of the Synciput are confirmed appears soft and fluid and hath no more coherence then coagulated Milk The third Process is of the Intrals whose generation is discovered in the Chicken after the delineation of the body namely about the sixth or seventh day and neer upon the same time they all appear that is the Liver Lungs Kidnies the Cone of the Heart and its ventricles and also the Guts But their first original is from the Veines and are bred growing to them like Wens to the barke of Trees and at first they appear white bloodless and like a gelly and so continue till they are ripe for publick imployment The Guts with the Stomack seem at first like white threads waved or contorted extended through the longitude of the belly and together with them the Fabrick of the Mouth is discovered from which to the Fundament in a continued procession the top is united and linked to the bottom the Genitals also are about this time visible Yet hitherto the Bowels and Guts are not shut up within the hollow of the body but being fastned as it were to the Veines hang forth and thus doth even the Heart himself For the trunk of the body hitherto resembles a Skiff without a deck or a House without a roof as being hitherto no way covered over by the anteriour parts namely the Breast and Abdomen But so soon as the Sternum or breast-bone is framed the Heart enters into the breast as into a habitation of his own setting up and furnished purposely for him and being now retired like the Genius of the place he undertakes the patronage of the whole Mansion and there dwells with his servants the Lungs After this the Heart and Stomack retreat too at last the Guts shrowd themselves in the Belly So that in a Hen-egge after the tenth day of Incubation the Heart admits no spectators without dissection About this time the top of the Bill and the Claws break forth being all exceeding white and now a chylous matter is visible in the Stomack and a kind of Excrement in the Guts and the Liver being now begun hath the Gall which appears green adjoined to it By which it appears that a different Concoction and Preparation of the Aliment is now made whereof these are the Excrements from that which is performed by the Propagations of the Umbilical Vessels so that a just doubt may hence arise how Choler the Excrement of the Second Concoction can be separated from the rest of the Humours by the Livers help when it is it self in being at the same time with the Liver The Interiour parts are Universally generated after the Order proposed for in all Animals which I ever diffected they are framed after the same Manner and Order and especially in the more perfect in Four-footed Beasts and so in Man himself In whom the Heart Liver Lungs Spleen and Guts appear framed and augmented in the Second Third and Fourth Moneths at which times they are white as also the whole Body And hereupon the first days are not improperly called in lacte dies the Dayes in the Milk for the Bowels and all the other parts appeare spermatical except onely the Veines and chiefly those of the Navel The Umbilical Arteries are I conceive framed after their Name-sakes the Veines because they are scarce to be found in the first moneths and take their Original from the Branches which descend to the Thighes And therefore I conceive they are not constituted before that part of the body from whence they are derived But the Umbilical