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Show 0/ the Ovaricr and bggr of Bird)". Book I. Part IV, 0f the generation of 11 Forms in "Star/r. the particles of the Sutcm Nutricz'zrr) into the body of the Eggs, andTHI; milated into their {ubl‘tance7 whereby they grow gradually greater and gym. ter, till they receive their due magnitude, and then they are parted from the Ovary, and prefled downward by its Carnous Fibres into the rep of the Ovitltrét. The Rudiment of Eggs, commonly called the Yolk, adorned with a divets colour, fome part is of a more deep yellow, and another more pale, and t'llllL'l‘Clit in conlillenee from the white, as being more folid and delicate in fiibliance and talie, by rcafon the albuminous part of the Eggs is more thin7 el‘pecially as Colliquated by a gentle natural heat, and the Yolk more oily, and hath a power of dillolving Terpentine as its proper Men/imam. and is adorned \Vith a fmooth Orbicular figure, fomewhat rcli-mbling the pupil of the Eye, rciating to Birds; within the narrow confines of this 1ni~ nute Orb is lodged a (mall Bladder, (made up of minute Filaments) as a fine Vail, enclofing a delicate tranfparent Matter, the firlt rudiment oFall the inT tegrals, confirming the rare compage of the body of a Chicken. : [*laving difcourlcd the [Everal parts of the Egg, as the Seminal and Nutri- L cious parts or the Fri-I'm, I will now take the freedome togive a brieinltory of the diverle proceiies and Reps of the generation of Birds, how the C1:- mtrirnlrz admitteth many alterations, and the order of produftion ol~ parts, how they are liicceflively formed, and the Farm receiveth its due pcr‘leél‘ion. When the Egg is enlivened with the kindly heat of the lien, the great Thfliwnscof change is [hit dil‘covered in the Ciczzfrirnlrz or fpeck of the \Vhite, adioyning it.‘;'.i£if.¥é§3' to the Yolk 5 lb that this {pot is more and more dilated, as the Egg cometh [m' to more and more maturity in order to the production of the Chicken. C H A P. XXXIII. Of t/Jc (jcizc'ratiOIzqf a Foetus in fBirdr. After live or fit hours, when the Hen hath fate upon an Egg, the Spot or ;{,l‘f,f?‘l;?F‘5°" CimIrieH/d beginneth to be expanded, and the Veficle encompal'led with a ‘jirrlhntjilis Membrane, (as l conceive the Amnior) is filled with a fine Diaphanous hililixiha Liquor, in which appear the fit": glim'merings of the Head and Spine, ,ffgflii‘" ioniewhat rcfenrbiing the Keel of a Vellel, fwimming in the Seminal Liquor, Cgs being the firft rudiments of the Fmu; in Birds, it may not be im« proper briefly to delineate their parts of Which they confifl, the White, Yolk, 'l‘redles, and a white (pot, containing in it a Velicle big with a pure Cryfialline liquor, as the firi‘t Origen of the Chicken. The \Vliite (every way immuring the Yolk within its left bofome) is encircled with a thin Membrane, made of many fine {pun Filaments curioully interwoven, and is a white cryl'talline fubfiance, out of which, as a Seminal Liquor, all the parts of a Chicken are firlt formed and nouriflled. Tie‘i'ok. The Yolk is lodged in the centre of the Egg, every where encompafled vrith a tranlparent Albuminous Matter, in which it fwimmeth 3 and is endned with a more grofs and firm confidence ( hued with yellow) than that of the white, and is rather a Nutritious than Seminal Liquor 3 flipporting lodged in the Alumna", immured within a circle of the Cimn-iwla. Alter twelve hours fitting ofa Fowl, the Cimtrz'rula is receptive of a greater Expanlion, and the Lineaments of the Spine and Head appear more diltinél", h fo that the Head is deligned as adorned with divers circles, and the Spine , feemeth to conlill of [WO tanks of Vertebres ( guarding the firlt rudiment 32:35:33,135 of the Spinal Marrow) floating in the tranlparent Seminal Liquor, cnclo- trample fed within a line f‘v'lembrane; and afterward the Hill: draught of~ the Umbilical Veilcls doth [cum to be Formed in the Genital Matter, after the manner of an oblcure reticular plum. Alter eighteenhonrs, the more imperfect Delineation of the mer climb. . . . eth up toward the obtulc angle of the Egg, growrng more diltinél, and the Head appearcth greater, and the oblong Spine is made more conlpicuous in m Hcad' Aftercighteenhnursthc ambit" part gfiflgfifflg the Colliquated Seminal Liquor ( fenced in with a circle, which is not yet tigfifi‘ifid the Chicken when brought to fome perfection of parts within the confines obliterated) whole ambient parts are interlperfed with Rivulets, confined rcivlmsu» of the Shell. within Minute Veiiels, tending toward the Ammim. The Tredles of the Fgg, vulgarly f0 called, as they are conceived to be the feed of the Cock, which is only a fancy, by reafon thefe parts are found in When the Hen hath {are a day and night, the Cicatritrrla is very much en- \thn Mu; . Hen I'arn late larged in the obtufe part oi the Egg, and the draught of the Chicken grow- a." mi Eggs not pregnant 5 and one is feated in the obtufe and the other in the more acute angle of the Egg, and are molt of all lodged in the white, and firongly allired to the Membrane, encircling the yolk. The greater Tredle is compofed of many knots or little round Globules, called Gram/1712; by the Latiner, as refembling Hail {tones : This largerTrcddle doth encline toward the greater extremity of the Egg, and the leis, con- filling of fewer Globules bendeth toward the more acute angle of the Egg. '1 he Treddles are the more folid parts of the white, being white oblong bodies, leis diaphanous than the more thin parts of the Albuminous Liquor, and are ordained by Nature as two Poles to conferve the white, yolk, and white fpeck or Citatritula ( encircling the Veficle of tranfpai‘etit Liquor) within their proper fphaeres. . The Ciratrz'rula, the white {pot of the Egg, is its molt confiderable part, eth more confpicuous, and is lodged in the Colliquament, endued with a {fulfilgfl‘u'lfi long Head and many Globular rudiments of the Vertebres, making up the llgfiféhfhs Spine, which now heginneth to be made hollowed and fit for the entertainment «pith; oldie of the Spinal Pvlarrow, and the Wings do (com to dilcovct themlt-lves in 3,;‘;;;i.fi?f"‘ the manner of a Crofs, and three larger Veficles may be difcerned to he feared in the extrtmiry of the Spine, which are the firfl lineaments of the Brain , and alli) ivxo (ilobules, the rudiments of the Eyes , as Learned Malpig/Jim hath obli‘rved. About thirty and thirty fix hours, the Veficles feared in the top of the A-mutmirw Spine, and the (:lobules (the ruder draught of the Vertebres of it) ap- iimiitilii peat more evident, and the Umbilical Area is {herded with Varicofe VeITels, :‘l‘,lf,_ll}f,‘,§: which are firlt Coated with a yellowilh, and afterward with reddilh hue: In 35,2"??? the Head lin'nilhed vrith tvvo Appendagcs, the Eyes difcover theinfelves, and many Circles immnring other li‘veral flute, do contain within them five as the chief Seminal Liquor, productive of the Fret/M 5 and a white finall cir- elc aflixcd to the outward furface of the Membrane, enwrapping the yolkd an 232:] [1" Am‘ Veiiclcs, ( the tippermolt is filled with a dark and cryl'ialline Liquor) the rudiments of the Brain. Dddddddd After ' |
