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Show "x Book lll. Book III. 0/ the WW ' 971' the Walls {of the Bone very thick and denfe, that the fou nd may become Tl‘"f" more inten e by the greater Collifion thickncf°r" of Air made 11 s of‘° f ‘ ‘ Within the Cranium of this Fifh may the u; Pr:be foun d a P'Flrlia Agu cfi lar {011d Bo 3 BOdy ne, .fome- Tit/3,2171!" what difiei'erlit frolm that of Dogs, having at its Term l'b c H A P. XXIX. 0f the Skit/[r of Fiji). The dam. He Skull of a Porpefs ( of which Learned Dr. ijbii giveth a good ac. ‘b‘fi‘ji‘flflfm. W‘- count in his Trearife of the Porpefs) hath greater dimenfions in breadth then length, which is rare in other Animals. 'IlveSutures The Sutures were made in fimple Lines (as not infinuating themfelves one 213123.313: into another, as in a Humane Skull) except in thofe of the Occipm, which are b-""‘"""""‘ endued with fmall Indentments. The firuariwn The fituation of thefe Sutures is diH‘erent from that of Man's. oftthuturts. The Coronal Suture is deficient in this Animal, and infiead of it, was feared a large prominency of the Skull, and iii the middle of the Forehead is lodged a protuberancy, tiling up above the other parts of it. TlicOIganof The Or @etrnfum in this Animal is very different from other Animals, my: 1"" and much worthy our remark in reference to the Organ of Hearing, which bath a minute auditory pafl‘age (attended with no Aniicles without) to prevent the reception of Water, which elfe would prove prejudicial. Thtfituation The Organ of Hearing is feared in a large Cavity, engraven in the 01‘ ;:.ff;gf‘§gg; ferrofum, not faftned by Sutures, or jovned together by the union of "$- iiiany Bones, by the interpolition of Mufcles, (as the faid Curious AllthOY hath obferved.) This Bone (as in other Animals) is called T'ctrofiim from its eminent hardnefs, and is beautified with a White Colour, and endued with an irnllheclgiiisdfa irregular Figure. Within the OI'KPEZ'I‘II/‘lml may be difcovered (upon fawing the Bone) poms, a Trench Winding in various pofitions (refembling the Coded in Man's Ear) and leading to the ii'ympammz, lodged a little within the Ear. Near the Pronflm annillarir, are placed three large Protuberancies, and within the oppofite Terms are rendred hollow , arid when the Bone is taken out, you may fee a large Cavity, that goeth to the inward RCcclies of the Ear : H‘ And in this Bone are found many holes, that give arc- .t t‘eprion to the auditory Nerves (in their paffage toward the Cooler) the immediate Infltument of Hearing, to which all other parts of £11915" ' are lublervient. ,Zgl‘s'scfifm The ()r Prirofltm is not one entire Bone, but confillzeth of many, united it" rmiay in the fore part, \\ here the :ljvnpamtm is lodged, M": by Art, foiiie part is more thick, and the other a more thin Lamina ma- This Bone being parted kingtip the Cmiry of the auditory Bone, of which the thick portion isaccouimodated with three Protuberaneies, the middlemolt is feared over again. thc Tympmmm at its ourfide, and hath a large Foramen made forthc ingrels of the auditory Nerve. _ The Bone in its winding Cavity, is foniewhat like a Carlee, as being €911" _‘{'I'1(.‘tlfpll‘:tlly‘, and at its infidc go Everal minute Mufcles, or rathetllrzqc "L" Carnous Fibres, which by their contraétion render the Membrane Tenfei and the Cavity being very large in its Pofterior part, Nature wifely framIC I 16 , inar ion a Prominency gm" MP fomewhat re emb ing the Comb of a Cock ' from this B mmmnm Pictuberancy ( inftead of the Sinm Lané imdimlir) :dgi length 9f the Cramrmrr This Ptotuberance parted the two ngrzhfdwhh 1‘1 "WWW" Hemif hzzresof the Brain, as the OJ trzangularc feveted the Cerebrum from the Grebe/15m ' Tile Skullof a Carp is a hard firm O Compage, made up of whitifh Car- Th C tilaginous Fibres, interfperfed with more {trong Cartilaginous Proceffe Of imam?!" running in length and ending in a {tron g Carti (pafling crofs-ways fomewhatabove theE es laginous Seihicircular Procefg on CW. fo h ‘ ‘ tonal Suture in point of its pofition. y ) mew atrefembling the Uh The Cartilaginous Fibres of the Skull, bein g guarded laterally with a oTrmh . pmgflm {ii-orig bony Froruberauce, do make their pro , , t e C t'gtefs in beVi,l Line s, 2 little above grins the great Cartilages, coveri -19hr: ng the Gills. bAbovfegff Eyes on each fide, is feared a fquammous Surure, endtied with Thtfituan'on‘ a my u ance made up of man Proceffes; The~ and rubllaiiee ‘ ‘ large expanfions, and end into a kind of obtufe Cdit‘il ltdlhfls giglbehfil?r§ gingham With a Semilunary Figure) encircling a great part of the Eye. n e MIME" [he Skull Of ' a RORCh hath ["70 [CL "YOU g ()blt)" g bony Procefses llke ' CO- If ‘1l I ("l "a lumns (guarding . If i each fide of it ) .to which on I i fide IS - appen Cac] ‘ dan C a t r anl‘ of: Roach. 1‘ i "ll The Skull alfo hath a Cavity (pafl inq betW P of Ththavityoi: many bony ProcelTes fortifying the Compage CC th Ev. made h isu out- "55km wardly covered with a Skin, and more inwa of tlile Si oil,)65)whic rdly lined wi th a brown clammy fubltance. The Skull of a Bream hath a bony fram and is compofed of divers Proceffes (mak e molt proruberant in the middle, mm" °" ing their progtefs in length) which Brtam audits do much {trengthen the fabrick of Completthe Skull. The Skull of a Bafe hath a very thin and bony fubltanee', beautified T'mful with a Pyramidal F'igure, ofth Sk'flm" li bein broader near the 0ch. at an w c " growetli narrower, g . p and narrower endin in a Cone near P , h d after and "warm" '"ngm is agomed with two Sutures, feared aboutgthe edges of the siufi‘MOUth, and e girdle Skull of a Pike is compofed of one entire Bone withour any vifi- gl‘k°5"""°" vities ure, the outward furface is flat, and the inward hath two large Ca- Kc. [he sléufioitaimnga tranfparent glutinous Matter, and the lower region of The Sklullngrfaven with many Cells as f0 many repolitories of the Brain. Except in th 0. a Trurt hath a long flat Surfac e outwardly in every part, "ITEM": put to the A6 middle, where a Protuberance pafferh all along from the Orriin th nterior part, it is broad in one Extremity, and groweth narrow T if other till it endeth in a. thin edge. its fubft35:1" of a Fireflaire is rather Cartilaginous then Bony in reference to Etgffa‘fullo" nous Matt? except in the middle, where it is framed of a tough membr an inch in th, a four a quarter of an inch broad in fome part, and almofl ahalf cave Within 60: "c- er; This Skull hath a Convex Surface withou t, and Con- [Ubtrancies, )WTEE'CTEng almofi the whole length of the Skull betwe en two Pro‘ . of ,ibe BIOOd-veffclsére perforated in divers places for the ingrefs and egrefs p0 £2821"; Sea Turtle is endued with a beautif ul fii‘ueture, as‘com- Tfhtchfclrgufinre any 3rd Shells, of which the greateft is feared in the middle, :faSeaTiilh befet r mnd 350m with many fmall ones (adorned with variety of co- 'k' Q1I lours, |