mi: DEC klM "i i H 



and are stretched i 



lis and the inner wall of the ile, In \\>\>. procen 



tin- I \ mpaliir \\all (' ') O.IIM - In li- in t 1, 



>pirali>. the vt Milmlar \\.-il! mi \uili thr tvinj. 



.Mli-lr, and tin- third Wall (./) is rv.Tyuh- \villi t IK- 



.hondriimi ot' tin- cart ila^'ii dr. 



Tin- rpitht lial lining ot' thr im-n, 



dill'rirnt -.n.liti..iiN in i| l( - 1 1 



,\;ill. \\ hd. :>!lln-liul !!> .| il,,- \. ^f|l, 



A:ill> }>< < oint- in part nil lira 1. in j art .|iiit.- Hal. tin --,,{' tin- t \ m- 



wall beoome elongated, and M..H \\-ith tin- tonnin.i 



of tlir rcirlilrar h-r\.-; tln-\ | >i -. lilrr t hr r. .In j ilifated Ofg.i 

 (C), wliirli likr tin- ail', 

 lln- ainjiulla-, tlir >arc'iilii> un<l Ut I'irulii-. , 

 f tlir auditory IHTN.-. 



Tin- r(n>ti-iirti(Hi (.t i lu in! i i 

 Nvith tin- Ix^iniiiiii: "f tin- j-i 



plisbed by two methods. I*'ir>t. tin- t-artila^ii 



tlu- lulorhtMidral inaiim r. as d >r> ihr \vli- 



4 it \vliicli il rniiMitiltr.N a -Iliall i 



i- t-.r a lon^ linn- >{>,n^\ ai.il j'rt>vid-i \\itli lar^- n:i-tliillai 



hdly. tin- pi-ri..u-iy iii-:itioiuMl ftbfOQB OOnneot 

 tin- ]iartitii'ii> ! I \\ -n i be r"-hl- U 

 a\i- >r tlu incdii-liis and I i . dir-,-[ Q 



n. At the saiiir tinn- r.-inp 

 within on th<- .-pon^y ! tormed fit>m thecartilaginou 



laiurlhr arr i'orin- 



uni, which becomes the j un. Consequ*- 



i.'.Mi (.ip>ulr. >inr> it i> produced by JM 

 may l.i ra>ily drta< h-d h-.-in the loose osseous tissue of end> 



origin dui-ini: rarly post -natal years. 



(c) yv/v/,,y.///, Accessor)/ Aj>f"it'tttH* of the Orya 



With tin- membranous and U.ny lal. \rinth. whirh are toget 

 callrd thr iniin- i-ar. tlu're is associated a v 

 Same way that th-- -i'l>. and thr 



and lurt> an- addrd to thr rv.-lall. It i> mad.- up 

 whirh arr want in- in thr bwOT ' 'Ut, begini 



to be developed in thr Amphil.ia, become ' 1 "" I ' (1 ''' ' 



